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Sautéing onions and carrots in the Instant Pot then pressure cooking them with brown lentils, ketchup, mustard, and brown sugar creates tangy, sweet filling that tastes remarkably like traditional sloppy joes without any meat. Stirring in BBQ sauce at the end adds smoky depth while keeping the sauce from burning during pressure cooking. The lentils absorb all those classic flavors and create satisfying texture similar to ground beef, and the entire thing comes together in about 40 minutes hands-off. These freeze beautifully and cost maybe three dollars for the entire batch.
Lentil sloppy joes became my solution for wanting comfort food that doesn't involve ground beef. The first time I made these, I was skeptical that lentils could possibly recreate that sloppy joe texture and flavor. Learning that **brown lentils** specifically hold their shape during pressure cooking while absorbing flavors explained why they work so well as meat substitute. The **BBQ sauce stirred in at the end** was another revelation - adding it before pressure cooking causes it to burn and stick to the bottom. Now I make these constantly because they're genuinely delicious while being one of the cheapest, healthiest dinners possible.
Ingredients and Why They Matter
- Brown lentils (1½ cups, dried): Hold shape during cooking; green lentils work but need 2-3 more minutes; red/orange turn to mush
- Olive oil (1 tablespoon): For sautéing vegetables
- Yellow onion (1 medium, diced): Aromatic base; adds sweetness
- Carrot (1 medium, diced): Sweetness and texture; adds nutrition
- Garlic (3 cloves, minced): Essential savory depth
- Ketchup (½ cup): Tangy, sweet base that defines sloppy joe flavor
- Dijon mustard (2 tablespoons): Adds tang; regular yellow mustard or whole seed mustard work
- Brown sugar (2 tablespoons): Balances acidity from ketchup and mustard
- Vegetable broth (1½ cups): Cooking liquid; water substitutes
- BBQ sauce (½ cup): Added after cooking for smoky depth; use sweet, ketchup-based variety
- Salt and black pepper (to taste): Essential seasoning
- Hamburger buns (for serving): Use gluten-free if needed
How To Make It
- Sauté aromatics (optional but recommended):
- Press the "Sauté" button on your Instant Pot and wait until the display reads "Hot" - this takes about 3-5 minutes. Add the olive oil and let it heat for 30 seconds until shimmering. Add the diced onion and diced carrot. Sauté, stirring occasionally, for about 6 minutes until the vegetables soften and the onion turns translucent. This step develops deeper flavor through caramelization, but you can skip it if you're rushed - just add raw vegetables with everything else. Add the minced garlic and sauté for another minute, stirring constantly, until fragrant but not burned. Press "Cancel" to turn off the sauté function.
- Add remaining ingredients:
- Add the brown lentils, ketchup, Dijon mustard, brown sugar, and vegetable broth to the Instant Pot. Do NOT add the BBQ sauce yet - it contains sugars that can burn and stick to the bottom during pressure cooking, potentially triggering the burn warning. Stir everything together thoroughly so the lentils are submerged in liquid. Scrape the bottom of the pot to make sure no food bits are stuck there from sautéing, as these can cause burn warnings.
- Pressure cook:
- Secure the Instant Pot lid and make sure the valve is set to "Sealing" position, not "Venting." Press the "Pressure Cook" or "Manual" button and set to High Pressure for 15 minutes. The pot will take about 10 minutes to come to pressure - you'll know it's pressurizing when steam starts hissing from the valve and eventually the float valve pops up. Once at pressure, the actual cooking time begins. When the timer beeps after 15 minutes, leave the pot alone and let the pressure release naturally. This takes about 15 minutes. The float valve will drop when pressure is fully released.
- Check and finish:
- Carefully unlock and remove the lid, tilting it away from you so steam escapes away from your face. The lentils should be completely tender when you bite into one - soft all the way through with no chalky center. If they're still slightly firm, secure the lid again and cook on High Pressure for another 2 minutes, then do a Quick Release by carefully turning the valve to "Venting." Test again and repeat if needed, though this is rarely necessary with brown lentils. Once the lentils are perfectly tender, stir in the BBQ sauce thoroughly. The mixture should look thick and saucy, similar to traditional sloppy joe filling.
- Season and serve:
- Taste and adjust seasoning with salt and black pepper as needed. The filling should taste tangy, sweet, and slightly smoky with well-balanced flavors. If it tastes too acidic, add a bit more brown sugar. If too sweet, add a splash of vinegar or lemon juice. Spoon generous amounts onto hamburger buns. Top with your favorite additions like sliced onions, pickles, lettuce, avocado, or coleslaw. Serve immediately while hot. Leftovers keep refrigerated in an airtight container for 3-4 days. The filling also freezes beautifully for up to 3 months.
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Brown versus other lentil colors confused me until learning they're actually different varieties with different cooking properties. **Brown and green lentils** maintain their shape during long cooking, making them ideal for dishes where you want distinct lentil pieces. **Red and orange lentils** break down quickly into creamy purée within 5-10 minutes, perfect for soups and dal but terrible for sloppy joes where you need texture. The lentil color indicates not just appearance but actual cooking behavior.
Why Instant Pot Works Here
Pressure cooking reduces dried lentil cooking time from 45 minutes on the stovetop to **15 minutes hands-off**. The sealed environment traps steam that forces liquid into the lentils faster than normal boiling. The lentils also absorb flavors more thoroughly under pressure. No stirring or monitoring required - just set it and walk away. For people without Instant Pots, cook lentils on the stovetop in a covered pot for 30-40 minutes, stirring occasionally and adding liquid if needed.
Natural vs Quick Release
**Natural pressure release** means leaving the pot alone after cooking finishes and letting pressure dissipate gradually over 10-15 minutes. This gentle method prevents delicate foods like lentils from breaking apart from sudden pressure change. Quick release means manually turning the valve to release steam immediately - this works for vegetables but can make lentils burst or turn mushy. Always use **natural release for legumes and grains** unless the recipe specifically says otherwise.
The BBQ Sauce Timing
Adding BBQ sauce before pressure cooking seems logical but causes problems. BBQ sauce contains tomatoes, sugars, and thickeners that stick and burn on the Instant Pot bottom during high-heat pressure cooking. This triggers the "Burn" warning that stops cooking. Stirring sauce in **after pressure cooking** avoids this issue entirely while still providing that smoky, sweet flavor. This principle applies to most thick, sugary sauces - add them at the end rather than during pressure cooking.
Sautéing Step Purpose
Sautéing onions and carrots before pressure cooking develops deeper flavor through **caramelization**. The dry heat browns the vegetables' natural sugars, creating complex, sweet taste. Raw vegetables cooked only under pressure taste flatter and more one-dimensional. However, this step is truly optional - skipping it saves 10 minutes and still produces delicious results, just with slightly less depth. Choose based on your time and how developed you want the flavor.
Texture Expectations
These won't taste exactly like ground beef sloppy joes, but the texture is surprisingly similar - individual lentils create that slightly grainy, meaty mouthfeel. The lentils should be completely **tender but still holding their shape**, not mushy or hard. If undercooked, they'll have chalky centers that taste unpleasant. If overcooked, they'll turn to mush that looks more like hummus. Proper cooking creates distinct lentils in thick sauce.
Serving and Customizing
Classic sloppy joe service means piling filling high on soft hamburger buns. But endless variations exist - serve over baked potatoes, stuff into pita pockets, spoon over nachos, or eat straight from a bowl. Toppings transform it from simple to special: pickled onions, fresh lettuce, sliced pickles, avocado, cheese (if not keeping vegan), coleslaw, or jalapeños. Each addition changes the experience while keeping the core comfort food appeal.
Storage Benefits
The filling keeps refrigerated for **3-4 days**, making it perfect for meal prep. Reheat individual portions in the microwave for 2 minutes or on the stovetop over medium heat. **Freezing works beautifully** - cool completely, portion into freezer bags or containers, and freeze for up to 3 months. Thaw overnight in the refrigerator or reheat directly from frozen (which takes longer). Having frozen lentil sloppy joe filling means quick, healthy dinners are always available.
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These Instant Pot lentil sloppy joes represent the kind of plant-based cooking that proves meatless meals can taste just as satisfying as traditional versions. The combination of tender lentils, tangy-sweet sauce, and classic flavors creates comfort food that happens to be healthy and budget-friendly. When you serve these at a gathering and watch people go back for seconds without realizing they're vegan, you know you've created something that transcends dietary labels. Sometimes the best recipes are the ones that make healthy eating feel like indulgence, and these lentil sloppy joes definitely accomplish that goal perfectly every single time you make them.
Frequently Asked Questions
- → Can I use green lentils instead of brown?
- Yes, but green lentils take a bit longer to cook. Add an extra 2-3 minutes to the pressure cooking time to make sure they get tender enough.
- → How do I store leftover lentil sloppy joes?
- Keep leftovers in an airtight container in the fridge for up to 4 days. You can also freeze the filling for up to 3 months and reheat when you need it.
- → Can I make this recipe without an Instant Pot?
- Sure! Cook the lentils on the stovetop in a pot with the same ingredients. Simmer for 25-30 minutes until the lentils are soft, adding more water if needed.
- → What can I use instead of Worcestershire sauce?
- Soy sauce or tamari works well as a substitute. Just use about the same amount, or add a splash of balsamic vinegar for a tangy kick.
- → Are these sloppy joes kid-friendly?
- Absolutely! Kids love the sweet and tangy flavor. You can skip the hot sauce if they're sensitive to spice, and let them add their own toppings.
- → Can I double this recipe?
- Yes! Double all the ingredients including the liquid, but keep the cooking time the same. Your Instant Pot should handle it just fine.