In a medium saucepan, heat 1 teaspoon of oil on medium heat. When hot, add garlic and cook 1 minute.
Add remaining ingredients and stir to combine. Lower heat to a simmer until ready to use.
Beef and Bean Mixture
Preheat oven to 350.
In a large skillet, heat 1 tablespoon of oil on medium high heat. When hot, add diced onions and cook, stirring frequently, until translucent (about 5 minutes).
Add ground beef and cook until no longer pink, about 10 minutes.
Add remaining ingredients and stir to combine. Cook 10 minutes, stirring frequently. Remove from heat.
Enchiladas
Pour a little bit (about ¼ cup) of sauce in a large casserole dish and spread around the pan with a spoon.
Assemble each enchilada by using a slotted spoon to spoon beef and bean mixture into the tortillas. Try to use about ⅛th of the mixture in each tortilla.
Roll tortilla and place seam-down in the casserole dish in a row.
Pour enchilada sauce over the enchiladas. If you like your enchiladas less wet, you do not need to use all of the sauce.
Top enchiladas with cheese and put in oven for about 20 minutes, or until cheese is melted and beginning to brown on edges.
Top with sour cream, avocados, tomatoes, etc. if desired.