Bake the chicken breasts in the oven at 350 with half of the onion and garlic powder sprinkled on them, until done.
Cut off any unwanted parts and put the cooled chicken breasts into a food processor.
Add the rest of the garlic and onion powders, salsa, olive oil, and nutritional yeast. Blend until you have a well blended, "crumbly dough" looking mixture.
Warm the tortillas in the microwave, wrapping them in a wet paper towel. Get them nice and "pliable" so they don't rip while you are rolling them. They will be hot, so don't burn yourself!
Put about 1 tbsp. of meat on a tortilla, and roll up like you are rolling a carpet.
Place the taquitos in an oiled baking pan and spray the tops with olive oil using an oil mister/sprayer. This will give you the browned crunchiness that everyone loves in a taquito.
Bake at 400 degrees F. until they are golden brown (About 20 minutes, but the time can vary from oven to oven. So keep an eye on them).
Cool and serve with salsa for dipping!
Note: These freeze well. To eat after freezing, defrost overnight in the fridge and then warm in the oven. You can microwave them, but they get soggy.
Please note that the nutrition data below is a ballpark figure. Exact data is not possible.