1 medium-sized onion, chopped
1 pound ground beef
1 (16-ounce) package wide egg noodles
1 (10-3/4-ounce) can condensed tomato soup
1 (10-3/4-ounce) can condensed cream of mushroom soup
1 cup milk
1 teaspoon salt
1/2 teaspoon black pepper
1/2 teaspoon paprika
Preheat oven to 375 degrees F. Coat a 3-quart casserole dish with cooking spray.
In a large soup pot, cook noodles according to package directions; drain well and return noodles to pot. Add ground beef mixture and remaining ingredients, except paprika; mix well. Place in prepared casserole dish and sprinkle with paprika.
Cover and bake 25 to 30 minutes, or until heated through.