Aunt Rose's Beef Enchiladas

This is my great aunt Rose's recipe for beef enchiladas, they are so yummy and easy to make! Here's what you need:

1 1/2 lbs. ground beef
1 onion, chopped
1 can red enchilada sauce
1 sm can tomato sauce
12 corn tortillas (I always seem to need more)
2 Cups grated cheese (Mexican blend is best)
oil

Brown meat and onions, drain, cool. Mix enchilada sauce and tomato sauce. Add 1 1/2 Cups cheese and 1/4 Cup sauce. Toss lightly. Dip each tortilla in hot oil til soft, stack on paper towels, let cool slightly. Fill tortilla with 2 Tbsp meat mixture. Roll up, put in greased casserole dish, repeat until all filling is gone. Pour remaining sauce over the top of the enchiladas and sprinkle cheese on top. Bake at 250 degrees for 30 minutes.
You can make these ahead of time and freeze them if you like, just leave the sauce and cheese off the top, add them after they are thawed.