1In a frying pan saute ground beef and onions until meat is browned and onions are soft. Stir in beans, salt, garlic powder, taco sauce, and olives; heat until bubbly.
2Heat enchilada sauce; pour about half into an ungreased, shallow 3-quart baking dish. Pour oil to a depth of about 1/4-inch in a small frying pan; heat. Dip tortillas, one at a time, in hot oil to soften; drain quickly. Place about 1/3 cup of the ground beef filling on each tortilla, and roll to enclose filling. Place, seam sides down, in sauce in baking dish. Pour remaining enchilada sauce evenly over tortillas; cover with cheese.
3Bake, uncovered, in a 350ºF oven for about 15 minutes or until thoroughly heated. (Or cover and refrigerate for up to 1 day); if taken directly from refrigerator, increase baking time to 45 minutes).
4Garnish with olive slices. Spoon sour cream and chile sauce over each serving to taste.