Lentil Burgers: The Zero Waste, Egg-Free, Gluten-Free Burger Recipe Perfect for Lunchboxes
If you know me, you know that my cooking focuses on reducing waste and making recycling a way of life to create economical, yet delicious and creative recipes. These lentil burgers were born from the idea of using leftover soup made with these legumes cooked with Sicilian purple cauliflower, as tradition dictates. Of course, simple boiled lentils will also work. The important thing is not to waste them if they are left over, because trust me, smart cooking transforms leftovers into gourmet dishes! Moreover, these homemade lentil burgers are egg-free, gluten-free, and incredibly tasty.
Why choose them as a main course?
The lentil and cauliflower burgers represent an excellent vegetarian main course, as they meet the growing demand for plant-based proteins obtained from natural and unprocessed ingredients. Thanks to the combination of legumes and vegetables, this dish offers a complete nutritional profile, ideal for replacing meat without sacrificing taste and satiety. Additionally, they are a low glycemic index dish, rich in iron and fiber. Using leftover lentil soup to create them is a perfect Zero Waste strategy (anti-waste), highly sought after for its positive ecological impact.
Why is this recipe “Smart” and Healthy?
Transforming a soup into a burger is a chef’s trick to vary the weekly diet. By using cornmeal instead of traditional breadcrumbs, you get a double advantage: on one hand, a crispy and compact texture, as cornmeal will absorb the residual moisture serving as a natural binder instead of eggs, and at the same time create an irresistible outer crust. On the other hand, a 100% gluten-free guarantee, perfect for those with celiac disease and for those who wish to reduce gluten in their diet.
Accompany these burgers with a yogurt and mustard sauce or a fit mayonnaise or aquafaba (legume cooking water) to stay on the “Zero Waste” theme!
Other burger recipes you might be interested in:
- Difficulty: Very Easy
- Cost: Economical
- Rest time: 30 Minutes
- Preparation time: 20 Minutes
- Cooking time: 30 Minutes
- Portions: 7 Pieces
- Cuisine: Italian
- Seasonality: All Seasons
Ingredients
⚠ THIS RECIPE CONTAINS ONE OR MORE AFFILIATE LINKS. The products I recommend are the same ones I use in my recipes; purchasing them through my blog helps support me and my work, while it won’t cost you anything more!
- 14 oz cooked lentils
- 1 potato (boiled)
- 1/3 cup cornmeal (+ as needed for breading)
- 1/3 cup grated Grana Padano
- 1 tbsp flax seeds (ground)
- to taste garlic powder
- 1/2 tsp nutmeg
- 1 bunch parsley
- to taste salt
- to taste mixed peppercorns
Tools
- 1 Sieve
- 1 Mixing Bowl
- 1 Hand Blender
- 1 Potato Masher
- 1 Spoon
- 1 Spatula
- 1 Bowl
- 1 Baking Sheet
- 1 Parchment Paper
Steps
This recipe is perfect if you have already cooked lentils. I cooked them with cauliflower, but simple ones will do just fine. Once ready, drain them very well using a sieve, transfer them to a large mixing bowl, and blend them with a hand blender.
You should obtain a smooth and homogeneous mixture, then add the still warm boiled potato mashed with a potato masher.
Mix the two mixtures with a spatula or spoon and adjust the salt.
Add the finely chopped parsley, the grated Grana, the cornmeal, the garlic powder, and the nutmeg.
Finally, if you like, add a dash of pepper.
Mix everything together, take a full spoonful of the mixture at a time (about 3 oz) and form your burgers with slightly damp hands, starting from a patty and then shaping and flattening it to give it the typical shape*.
Now roll them in cornmeal and make sure it adheres to all sides, shaking off the excess.
Place the burgers one by one on a baking sheet lined with parchment paper and sprinkle the surface with olive oil. Bake in a preheated static oven at 350°F for about 25′, then flip them and continue baking for another 5′.
Turn off the oven, take them out, and let them cool slightly.
And voilà… the lentil burgers are ready to be enjoyed!
Bon Appetit from La Cucina di FeFè!
Storage
👉Lentil burgers keep in the fridge in an airtight container for 3 days.
You can freeze them raw (separated by parchment paper) within 3 months to preserve their organoleptic properties. Vegetable burgers tend to dry out in the fridge. To regenerate them without making them rubbery, heat them in a pan (“Soft” Method), adding a teaspoon of water and a drizzle of oil. Cover with a lid: the steam generated will rehydrate the inside of the burger, while the final oil will restore the outer crispness. Alternatively, use an air fryer, spraying the surface with some water or oil spray, heat at 325°F for 3′-4′. This moderate temperature prevents burning the outside while leaving the center cold. Finally, 2′ in the microwave.
Tips, notes, variations, and suggestions
🟣*If you want to speed up forming the burgers, you can alternatively use a cookie cutter placed on a sheet of parchment paper: just put some filling inside, level it well with a spoon and remove the cookie cutter. And you’re done!
🟣If you prefer cooking the lentil burgers in an air fryer, place them on pieces of parchment paper and spray them with some oil. Each air fryer model may vary slightly, but the standard parameters for burgers about 0.8 inches thick require cooking at 375°F for 12′-15′ total. Turn the burgers halfway through cooking (after about 7 minutes).
🟣Creative variations and pairings: To make lentil burgers more exciting, try these gourmet pairings:
“Zimino” Version: Add chopped chard to the mixture for a nod to the Ligurian tradition.
Spicy Touch: Add cumin, turmeric, or smoked paprika for a more intense aromatic profile.
Sauce: Serve them with a vegan mayonnaise or a avocado cream to balance the texture of the legumes.
FAQ (Frequently Asked Questions)
1. Can I use other types of leftover legumes?
Absolutely! This method works great with leftover chickpea or bean soup as well. The important thing is that the base is well drained before forming the burger.
2. Can these burgers be frozen?
Yes. Once formed (but before cooking), you can freeze them separated by parchment paper. When needed, cook them directly from frozen for a time-saving dinner.
3. Can I use breadcrumbs instead of cornmeal?
Certainly, but in this case, unless it is gluten-free breadcrumbs, the burgers will no longer be suitable for celiacs.
