Preheat oven to 400 degrees. Gather the ingredients so that you have everything close at hand.
Prepare the Taco Bowls
To make the taco bowls, brush each flour tortilla with vegetable oil on both sides.
On a large baking sheet, place each tortilla over a ball of wadded up tinfoil (about the size of a large orange). Bake in preheated oven for 8-10 minutes until tortillas are golden brown.
Make the Taco Meat
While the bowls are baking, brown the ground burger in a large skillet over medium high heat. When brown, add chili powder, soy sauce, minced onion, onion powder, and ground cumin. Mix well.
Add chili beans and simmer for 7-10 minutes.
Prepare the Toppings
Shred the cheddar cheese and place in a serving bowl.
Using a cutting board and Chef's knife, shred the lettuce and dice the Roma tomatoes.
To assemble the taco bowls, place 1 cup of meat mixture in each bowl. Top with cheddar cheese, shredded lettuce, diced tomatoes, sour cream, and salsa. Serves 8.