These beet and lentil burgers are made from roasted beets, brown lentils, toasted walnuts, rolled oats, and a short list of pantry seasonings — no obscure binders, no processed meat substitutes. They hold together well, develop a firm crust in a skillet or on a grill, and keep in the fridge for days without falling apart. If you want a satisfying burger you can actually make on a Sunday and eat through the week, this is a reliable one.
The short version of why this works
Two things carry this recipe. First, moisture control: beets release a lot of liquid, and if you don’t squeeze the shredded beets firmly before mixing, the patties will be too wet to hold their shape. Wrapping them in a clean kitchen towel and pressing hard makes a real difference. Second, the walnuts are toasted, not raw. Toasting drives off moisture and deepens their flavor, which is what keeps the patties from tasting flat. Everything else — the smoked paprika, tamari, cumin, tomato paste — builds on that dry, nutty base.
Common problems and fixes
- Patties crack when flipped: The mix was probably too dry or not chilled long enough. Rest the formed patties in the fridge for at least 30 minutes before cooking — this lets the oats absorb moisture and the mixture firm up.
- Burgers stick to the pan: The skillet wasn’t hot enough before the oil went in. Heat the pan first, then add oil, then the patties. A cold pan causes sticking regardless of how much oil you use.
- Interior stays mushy even when the outside looks done: Your lentils were overcooked and waterlogged. Brown lentils should be just tender — not falling apart. Drain them well and spread on a tray to steam-dry for a few minutes before mixing.
- Flavor tastes flat after reheating: A quick hit of tamari or a squeeze of lemon when reheating in a skillet brings the seasoning back. Reheating in a microwave tends to dull the spices more than pan reheating does.
- Patties puff and split on the grill: Flatten them slightly more than you think you need to — about ¾ inch thick. Thicker patties trap steam and crack on high heat.
Substitutions that actually work
- Tamari: Regular soy sauce works fine. Coconut aminos is a lower-sodium option but adds a slight sweetness — reduce the tomato paste by half a teaspoon if you go that route.
- Walnuts: Pecans are the closest swap in texture and fat content. Sunflower seeds work if there’s a nut allergy, though the flavor is milder — add an extra half teaspoon of smoked paprika to compensate.
- Rolled oats: Breadcrumbs (use vegan-certified ones) bind similarly. Skip the garnish of extra oats on the outside of the patty — not worth the extra dish.
- Brown lentils: Green lentils behave almost identically here. Black beluga lentils hold their shape even better but are drier, so add one extra teaspoon of tomato paste to keep the mix cohesive.
Make-ahead notes
Formed, uncooked patties keep well in the fridge for up to 3 days — stack them with a small square of parchment between each one and cover tightly. For longer storage, freeze them on a parchment-lined tray until solid (about 2 hours), then transfer to a freezer bag; they’ll keep for up to 2 months. Cook from frozen in a covered skillet over medium-low heat for about 6 minutes per side, then uncover for the last 2 minutes to crisp the exterior. Already-cooked patties reheat best in a dry skillet over medium heat for 3–4 minutes per side — they firm back up and regain their crust in a way the microwave won’t replicate.
Beefy Beet Burgers
Equipment
- Food processor
- Skillet or grill
- Mixing bowls
- Box grater
- Baking sheet
Ingredients
- 1 cup cooked brown lentils well drained
- 1 cup raw red beets peeled and shredded (about 1 medium beet)
- ½ cup rolled oats gluten-free if needed
- ½ cup toasted walnuts lightly crushed
- ¼ cup finely chopped red onion
- 2 cloves garlic minced
- 2 tablespoons tomato paste
- 1 tablespoon tamari or soy sauce use low-sodium if preferred
- 1 teaspoon smoked paprika
- ½ teaspoon ground cumin
- ½ teaspoon kosher salt adjust to taste
- ¼ teaspoon freshly ground black pepper
- 2 tablespoons olive oil or neutral oil for cooking
Instructions
- In a food processor, pulse the lentils, oats, walnuts, red onion, garlic, tomato paste, tamari, smoked paprika, cumin, salt, and pepper until the mixture holds together but retains some texture. Avoid over-processing to preserve a toothsome bite.
- Transfer mixture to a large bowl. Add the grated beet and mix well by hand or with a spatula to distribute evenly.
- Form the mixture into 4 equal patties, about 3/4-inch thick. Let them chill in the refrigerator for at least 20 minutes to firm up — this helps prevent crumbling while cooking.
- Heat oil in a skillet over medium heat (350°F / 175°C). Sear the patties 4–5 minutes per side until golden brown and heated through. Alternatively, grill over medium heat for similar results.
- Serve on toasted vegan buns with your choice of toppings such as avocado, arugula, pickled red onions, or vegan mayo.
Notes
- Substitute black beans for lentils if preferred for a different flavor profile.
- Add 1 tablespoon of ground flaxseed if the mixture feels too wet.
- To caramelize onions quickly: add a pinch of baking soda while cooking sliced onions low and slow.
- Mixture can be made ahead and stored in the fridge for 24 hours before forming patties.
Nutrition
Your questions, answered
Can I use canned beets instead of fresh?
You can, but you need to drain and dry them very thoroughly — canned beets hold significantly more water than roasted fresh ones. Spread them on paper towels, press firmly, and let them sit for 10 minutes before shredding; skipping this step almost guarantees patties that won’t hold together.
How do I keep the patties from falling apart when I flip them?
Chill the formed patties for at least 30 minutes before cooking — this is the single most effective step. Also make sure you’re only flipping once; moving them around in the pan before a crust forms is the main reason patties break.
Can I bake these instead of pan-frying?
Yes — bake at 400°F on a lightly oiled baking sheet for about 20 minutes, flipping once at the halfway point. The crust won’t be as firm as a skillet version, but they hold their shape well and the interior texture is the same.
Are these gluten-free?
They can be, with two swaps: use certified gluten-free rolled oats and replace tamari with coconut aminos or a gluten-free soy sauce. Everything else in the recipe is naturally gluten-free.
Can I make the mixture the night before and form patties in the morning?
Yes, and it actually improves the texture — the oats have more time to absorb moisture, which makes the patties easier to shape and less likely to crack. Store the mixture covered in the fridge for up to 24 hours before forming and cooking.
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