Lentils add protein while walnuts add crunch to these easy plant-based tacos. Customize them with your favorite toppings for the perfect taco night.
1 medium onion
1 clove garlic, minced
1 1/2 cups dried brown lentils
1 1/2 cups finely chopped walnuts
1/4 tsp. dried oregano
1/2 tsp. paprika
1 1/2 tsp. ground cumin
1 (14.5-oz.) can diced tomatoes
3/4 cup grated reduced-fat Mexican cheese blend
Medium flour tortillas, warmed
Diced tomatoes, chopped green onions and Greek yogurt, to serve