Back to Recipes

High-Protein Sweet Potato and Lentil Burgers with Creamy Avocado Aioli

Name: High-Protein Sweet Potato and Lentil Burgers with Creamy Avocado Aioli
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Yield: 6 servings
Cuisine: Fusion
Ingredients: 1 cup dried brown or green lentils, rinsed and drained; 2 medium sweet potatoes, peeled and diced (about 2 cups); 1 small yellow onion, finely chopped; 2 cloves garlic, minced; 1/2 cup rolled oats; 1/4 cup ground flaxseed; 1 tbsp ground cumin; 1 tsp smoked paprika; 1/2 tsp chili powder; 1/2 tsp salt; 1/4 tsp black pepper; 2 tbsp fresh cilantro, chopped (optional); 2 tbsp olive oil (for cooking); 6 whole-grain or gluten-free burger buns (optional, for serving); Leaves of lettuce and tomato slices (optional, for serving); 1 ripe avocado; 1/4 cup unsweetened plant-based yogurt (e.g., coconut or soy); 1 tbsp fresh lemon juice; 1 tsp Dijon mustard; 1 garlic clove, minced; Salt and pepper to taste; Water to thin if needed

By PowerProteinPlates Editorial TeamPublished May 1, 2026 | Updated Jul 22, 2026

Fusion 40 mins high-proteineasy-recipeswhole-foodssnack-ideasmeal-prep-friendly

High-Protein Sweet Potato and Lentil Burgers with Creamy Avocado Aioli with measured ingredients, 40-minute timing, 6-serving yield, and step-by-step instructions for protein-focused meals, snacks, smoothies, and meal preparation.

Prep 15 min

Cook 25 min

Total 40 min

Servings 6

Difficulty easy

Cuisine Fusion

Ingredients

Servings 6

1 cup dried brown or green lentils, rinsed and drained
2 medium sweet potatoes, peeled and diced (about 2 cups)
1 small yellow onion, finely chopped
2 cloves garlic, minced
1/2 cup rolled oats
1/4 cup ground flaxseed
1 tbsp ground cumin
1 tsp smoked paprika
1/2 tsp chili powder
1/2 tsp salt
1/4 tsp black pepper
2 tbsp fresh cilantro, chopped (optional)
2 tbsp olive oil (for cooking)
6 whole-grain or gluten-free burger buns (optional, for serving)
Leaves of lettuce and tomato slices (optional, for serving)
1 ripe avocado
1/4 cup unsweetened plant-based yogurt (e.g., coconut or soy)
1 tbsp fresh lemon juice
1 tsp Dijon mustard
1 garlic clove, minced
Salt and pepper to taste
Water to thin if needed

Powerproteinplates Vegan High-Protein Sweet Potato and Lentil Burgers with Creamy Avocado Aioli ingredients image

Instructions

Rinse lentils thoroughly and place in a medium pot with 2 1/2 cups water. Bring to a boil, then reduce heat and simmer uncovered until lentils are tender but not mushy, about 20-22 minutes. Drain any excess water and set aside to cool slightly.
Meanwhile, steam or boil the diced sweet potatoes until very tender, about 10-12 minutes. Drain and mash until smooth.
In a large mixing bowl, combine cooked lentils, mashed sweet potatoes, onion, garlic, rolled oats, ground flaxseed, cumin, smoked paprika, chili powder, salt, pepper, and chopped cilantro if using.
Mix thoroughly. Let the mixture rest for 5 minutes to allow oats and flaxseed to absorb moisture and help bind the patties.
Shape the mixture into 6 evenly sized patties about 3/4 inch thick. If the mixture feels too sticky, wet your hands slightly or add extra oats to facilitate shaping.
Heat olive oil in a large non-stick skillet over medium heat. Cook patties for 5-6 minutes per side, until golden brown and firm. Handle carefully when flipping to prevent breaking.
While burgers cook, prepare the avocado aioli by blending avocado, plant-based yogurt, lemon juice, Dijon mustard, and minced garlic until smooth and creamy. Season with salt and pepper to taste. Add water gradually to reach desired consistency.
Serve burgers on whole-grain or gluten-free buns with lettuce, tomato, and generous avocado aioli. Alternatively, enjoy patties alone as snacks or alongside salads for meal prep.
Store leftover patties and aioli separately in airtight containers in the refrigerator for up to 4 days.