Preheat oven to 425.
Brown and drain ground beef. Add in garlic, oregano, tomato sauce, salt and pepper.
Cook noodles according to package while beef mixture simmers. Drain noodles and return to pot. Stir in sour cream.
In buttered dish, layer noodles, beef mixture and cheese.
Bake for 20 minutes or until cheese is completely melted.
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