These lentil and mushroom patties are a from-scratch veggie burger made with cooked lentils, fresh vegetables, and pantry spices — no mystery ingredients, no processed base. They come together in 25 minutes and hold up well whether you’re making four patties or a full batch for a cookout.
Why this recipe works
Two things make these patties actually hold together and brown properly. First, the food processor chops the mushrooms, carrot, onion, and garlic into small, even pieces — this matters because large chunks create weak spots where patties crack during flipping. Second, flour binds the mixture without adding eggs. Eggs can make lentil patties dense and gummy in the center; flour keeps the texture firm and lets the outside get genuinely crispy in the pan. The combination of those two steps is what separates a patty that flips cleanly from one that falls apart on the spatula.
What can go wrong
- Patties steam instead of sear: Overcrowding the pan traps moisture. Cook in batches with space between each patty, especially when scaling up for a crowd. A second skillet running simultaneously is faster than one overloaded pan.
- Mixture is too wet before cooking: Mushrooms release water when processed. If the mixture feels loose after mixing, spread it on a plate and let it rest for 5 minutes — some moisture will absorb into the flour on its own before you need to add more.
- Patties fall apart when flipping: Flipping too early is the usual cause. Wait until the bottom is visibly browned and the edges look set before you touch them. A thin, wide spatula slid fully under the patty gives you the best control.
- Bland result despite spicing: Lentils absorb seasoning as they sit. Season the mixture, form one small test patty, cook it quickly, and taste before you form the full batch — it’s much easier to adjust salt and spice at that stage than after everything is cooked.
- Patties shrink unevenly: If patties are different thicknesses, some will be done while others are still raw in the center. Press each one to a consistent thickness — about ¾ inch — before they go in the pan.
Ingredient notes
- Lentils: The recipe uses cooked brown or green lentils. Canned lentils work fine — drain and rinse them well, then pat dry. Excess moisture from the can will throw off the flour ratio.
- Cilantro swap: The recipe notes parsley or spinach as alternatives. Flat-leaf parsley is the closest match in texture. Spinach adds moisture, so squeeze it dry first.
- Spice pack: The recipe calls for a small pack of spices. Cumin, coriander, caraway, salt, pepper, and red pepper flakes are the specific spices used — roughly ½ to 1 teaspoon each of the dried spices is a practical starting point for one batch.
- Refined coconut oil: Refined coconut oil has a high smoke point and no coconut flavor, which is why it’s recommended here over virgin coconut oil. Canola or corn oil are straightforward substitutes with similar smoke points.
Storage and reheating
Cooked patties keep in the fridge for up to 4 days in an airtight container. For longer storage, freeze them in a single layer on a baking sheet until solid, then transfer to a freezer bag — they’ll keep for up to 3 months. Reheat from the fridge in a dry skillet over medium heat for 3 to 4 minutes per side; this brings back the crispy exterior that a microwave will kill. From frozen, thaw overnight in the fridge first, then reheat the same way. If you’re prepping for a cookout, cooked and chilled patties reheat faster and more evenly than raw ones formed on the day.
Lentil and Mushroom Burger
Equipment
- Food processor
- Large mixing bowl
- 10-inch (25cm) non-stick skillet or cast-iron skillet
- Spatula (wide, thin-edged for flipping)
- Baking sheet (for freezing extras)
Ingredients
- 4 large cremini (Swiss brown) mushrooms approximately 150g / 5oz
- 2 cloves garlic
- 1 medium carrot approximately 80g / 3oz, peeled
- ⅓ medium brown or yellow onion approximately 50g / 2oz
- ¼ cup fresh cilantro 10g, loosely packed (substitute flat-leaf parsley or baby spinach if preferred)
- 2 cups cooked brown or green lentils 400g (approximately ¾ cup / 150g dried, then cooked)
- ½ cup all-purpose flour 65g, plus extra if needed
- 1 teaspoon ground cumin
- 1 teaspoon ground coriander
- ½ teaspoon caraway seeds
- ½ teaspoon salt or to taste
- ¼ teaspoon black pepper
- ¼ teaspoon red pepper flakes
- 3 tablespoons refined coconut oil 45ml, or other neutral high-heat oil (canola, vegetable)
Instructions
- Add the mushrooms, garlic, carrot, onion, and cilantro to a food processor. Pulse 8–10 times until the vegetables are finely and evenly chopped — avoid over-processing into a paste. Transfer the mixture to a large mixing bowl.4 large cremini (Swiss brown) mushrooms, 2 cloves garlic, 1 medium carrot, ⅓ medium brown or yellow onion, ¼ cup fresh cilantro
- Add the 2 cups of cooked lentils to the bowl.2 cups cooked brown or green lentils
- Add the cumin, coriander, caraway seeds, salt, pepper, and red pepper flakes. Lentils absorb spice readily, so don’t be shy — taste the raw mixture and adjust the seasoning now; it should taste slightly over-seasoned since cooking will mellow the flavours.1 teaspoon ground cumin, 1 teaspoon ground coriander, ½ teaspoon caraway seeds, ½ teaspoon salt, ¼ teaspoon black pepper, ¼ teaspoon red pepper flakes
- Sprinkle the flour over the mixture. Using a fork or your hands, mash and fold until the flour is fully incorporated and the lentils are partially broken down — you want a mixture that is cohesive but still has some texture. Test by forming a small amount into a patty in your palm; it should hold its shape without cracking. If it crumbles, add flour one tablespoon at a time until the mixture binds. Divide into 4 equal portions and shape into patties about 1.5cm (⅝ inch) thick.½ cup all-purpose flour
- Heat the refined coconut oil (or other neutral oil) in a large non-stick or cast-iron skillet over medium heat until the oil shimmers — about 2 minutes.3 tablespoons refined coconut oil
- Carefully place the patties in the hot oil, leaving at least 2cm (1 inch) of space between each one so they brown evenly rather than steam.
- Cook undisturbed for 5–7 minutes until the bottom is golden brown and releases easily from the pan. Gently flip with a wide spatula and cook the second side for another 5–7 minutes until equally crisp. Transfer to a wire rack or plate lined with paper towel and rest for 2 minutes before serving.
Notes
Nutrition
Frequently asked questions
Can I make the patty mixture ahead of time?
Yes — you can mix and form the patties up to 24 hours in advance and refrigerate them on a covered plate. Chilling actually helps them firm up, which makes them easier to handle in a hot pan.
How do I double or triple this recipe without the patties getting soggy?
Process the vegetables in batches so the food processor doesn’t get overloaded and turn them into a wet paste. Mix the full batch in a large bowl, then cook in multiple pans at once rather than stacking patties or holding them warm in a covered dish.
Can I cook these on an outdoor grill instead of a skillet?
These patties are softer than a beef burger and can fall through grill grates. Use a cast iron skillet or flat griddle plate directly on the grill, or line the grates with foil — you still get the outdoor setup without losing patties to the coals.
Are these patties gluten-free?
Not as written — the recipe uses regular flour as the binder. A 1:1 gluten-free all-purpose flour blend works as a direct substitute; rice flour also binds well but produces a slightly denser texture.
My mixture is too dry and crumbly — what do I add?
Add water or vegetable broth one tablespoon at a time and mix until the patty holds its shape when pressed. Over-dried lentils or a particularly dry carrot are the usual culprits.
What toppings and sauces work well with these?
The cumin-coriander spice profile pairs well with yogurt-based sauces, sriracha mayo, or a simple tomato relish. Avoid very wet toppings like a heavy tomato slice without draining it first — they’ll soften the patty quickly once assembled.
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