Heat 1 tablespoon of oil in a large skillet over medium high heat. Add onion and cook until soft and translucent, 3 minutes. Add mushrooms and 1 tablespoon of olive and cook until mushrooms are golden brown, 10 minutes. Add garlic and cook until fragrant, 1 minute. Remove from heat and wipe out the skillet.
In the bowl of a food processor, add mushroom mixture, lentils, oats, eggs, paprika and salt. Process until the mixture is fully incorporated and starts to ball.
Make the yogurt sauce by combining all ingredients in a medium bowl, and season to taste.
Heat 1 tablespoons of oil in wiped skillet over medium-high heat. Scoop ⅓ cup of the mixture and drop into the heated skillet Cook 4 patties until golden brown, 3 minutes per side. Repeat with the final 1 tablespoon of oil and 4 more patties.Serve with yogurt sauce immediately.
Video
Notes
Storage: These lentil cakes will keep in an airtight container for 3 to 4 days in the fridge.