Mix dried minced onion (or onion powder), chili powder, garlic powder, salt, paprika, cumin, cayenne, and oregano in a bowl and set aside.
In a large pan (with a lid) over medium-high heat, heat oil and place onion, garlic, and bell pepper and saute for 3 to 5 minutes.
Add lentils and seasoning mix. Saute for 5 minutes.
Add veggie broth and bring to a boil.
Once boiling, cover and lower heat. Cook for 30 minutes, or until broth is absorbed and lentils are soft but not mushy.
Transfer to a bowl and mash lentils with a fork.
Warm the tortillas on a skilled or bake them into taco shells in the oven. Scoop into tortillas and top with tomatoes, avocado, lettuce, and salsa.
