Pork
Powerproteinplates
Vegan High-Protein Sweet Potato and Lentil Burgers with Creamy Avocado Aioli
By Powerproteinplates Test KitchenReviewed by Powerproteinplates Editorial TeamPublished May 1, 2026 · Updated May 11, 2026
Fusion
40 mins
high-proteinveganeasy-recipesbalancedwhole-foodssnack-ideasmeal-prep-friendlykid-friendly
Protein-packed vegan sweet potato and lentil burgers with a creamy avocado aioli, perfect for healthy snacks, family meals, and meal prep. These wholesome burgers offer fiber and essential nutrients in a delicious, kid-friendly recipe suitable for balanced, plant-based diets.
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
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.
Frequently Asked Questions
Reader questions and answers for this recipe will appear here.
Customize these vegan high-protein sweet potato and lentil burgers with alternative ingredients to match dietary needs or flavor preferences:
- Lentils: Substitute black beans or chickpeas for a similar protein and fiber content.
- Sweet Potatoes: Try butternut squash or pumpkin for a comparable texture and natural sweetness while maintaining whole-food nutrition.
- Ground Flaxseed: Use chia seeds or hemp seeds as omega-3-rich binders that promote heart health and a balanced profile.
- Rolled Oats: Swap for gluten-free oats or quinoa flakes to accommodate gluten sensitivities and maintain texture.
- Avocado Aioli: Replace plant-based yogurt with coconut cream or cashew cream for an equally creamy, dairy-free aioli suitable for paleo and vegan diets.
- Olive Oil: Use avocado or coconut oil as alternatives for heart-healthy and paleo-friendly cooking fats.
For non-vegan or higher protein requirements, mince chicken, beef, or pork may replace lentils — adjust cooking as needed. Lean seafood such as salmon or white fish also provides high-quality protein suitable for athlete-focused and fitness-friendly meals.
These swaps keep the recipe aligned with dietary goals including weight management, low-fat options, and quick, nourishing meals compatible with a variety of nutrition plans.
Protein Highlight
These vegan sweet potato and lentil burgers deliver a substantial protein boost from nutrient-dense plant-based ingredients. Lentils provide a rich source of essential amino acids vital for muscle repair and recovery, while ground flaxseed contributes omega-3 fatty acids supporting heart health. Combined with fiber-packed oats and nutrient-rich sweet potatoes, this recipe offers a balanced profile designed to fuel active lifestyles and support muscle-building goals without animal products.
Ideal for meal prepping or quick snacks, these burgers are family-friendly and cater to whole-foods, fitness-conscious diets, providing long-lasting energy and satisfying protein that supports workout recovery and sustained fullness.
Goal Fit
Perfect for muscle-building, weight management, or maintaining balanced nutrition, these vegan high-protein sweet potato and lentil burgers combine plant-based protein and fiber to support muscle repair and growth. They suit vegan and vegetarian athletes by providing effective post-workout nutrition without animal products.
With whole foods like rolled oats and ground flaxseed enhancing fiber intake and digestive health, these burgers promote prolonged satiety and assist weight management. Sweet potatoes add complex carbohydrates, delivering steady energy essential for endurance training or daily activity.
This easy-to-make, meal-prep-friendly recipe fits busy lifestyles, offering wholesome, kid- and family-approved meals. Creamy avocado aioli contributes heart-healthy fats that have anti-inflammatory properties and support cardiovascular wellness.
The balanced, nutrient-packed nature of this dish fits well within vegan, fitness-friendly, and whole-food dietary preferences aimed at sustained health and performance.
Protein Density
Designed as a high-protein and balanced vegan option, these sweet potato and lentil burgers combine legumes and complex carbohydrates for nutrient-dense, plant-powered fuel. Lentils are naturally rich in protein and fiber, delivering essential amino acids critical for muscle maintenance and repair. Sweet potatoes provide valuable micronturiens and complex carbs promoting steady energy release ideal for meal-prep-friendly and kid-safe eating.
The recipe’s protein density supports energy-boost needs, weight-loss goals, and fitness-friendly lifestyles. Using whole-food vegan ingredients ensures the meal is dairy-free, high in fiber, and beneficial for digestive well-being and satiety.
Including these burgers in your regular meal rotation helps maintain strong protein intake without animal-derived foods, aligning perfectly with vegan dietary preferences while enhancing overall wellness.
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