2 cups elbow macaroni
1 lb ground beef
1 cup sharp cheddar cheese, shredded
1 cup mozzarella cheese, shredded
1/2 cup cream cheese
1/2 cup milk
1 teaspoon garlic powder
1 teaspoon onion powder
1 teaspoon paprika
Salt and pepper to taste
4 large flour tortillas
1/2 cup diced tomatoes (optional)
1/2 cup sour cream (for serving)
Chopped green onions (for garnish)