Sunni's Cheesy Enchiladas

This recipe was on the LPM blog this morning and it looked yummy to me. Just another variation of a classic. (I think even Kirsten could eat this!)

Ingredients:
(I always half this recipe)
24 flour tortillas
2 lbs. ground beef
2 lbs. Velveeta, cubed
2 cans Rotel tomatoes
4 (8-oz.) cartons sour cream
¼ cup butter
2 med. onions, chopped
1 dash garlic salt
Salt & pepper to taste

Brown meat with one chopped onion. Add garlic salt and salt and pepper. Drain. Coat large sauce pan with non-stick spray. Add sour cream and tomatoes, mix well. Add butter and heat on medium heat. Add Velveeta, stirring constantly. Add the remaining chopped onion. Turn heat to low and simmer for about 5 min. The cheese/butter should be melted by this point. Add a portion of the sauce to meat. Spoon meat mixture into tortillas. Lay in casserole dish, seam down. Pour remaining sauce over enchiladas. Cover and bake for 15 min. at 350 degrees.