Step 1

Preheat the oven to 350 degrees F.

Step 2

Grease a 13x9-inch baking dish.

Step 3

In a skillet, add the ground beef and the garlic salt and cook while crumbling until the meat is no longer pink, about 5-7 minutes.

Step 4

In a glass mixing bowl, combine the spaghetti sauce, the spaghetti sauce dry mix, and the cooked beef.

Step 5

Spread 1/3 of the cooked noodles into the bottom of the prepared dish.

Step 6

Spread 1/3 of the meat mixture on top of the noodles.

Step 7

Spread 1/3 of the sour cream on top of the meat mixture.

Step 8

Sprinkle 1/3 the cheese on top of the sour cream.

Step 9

Repeat the layers two more times, starting with the noodles and ending with the cheese.

Step 10

Bake, uncovered, until the cheese is melted and the casserole is heated through, about 30 minutes.

Step 11

Serve.