Preheat the oven to 375 F.
Cook the pasta until al dente, then drain, and rinse under cool water.
1 lb elbow macaroni
Add in the butter, milk, then eggs, and fold in the ingredients.
2 cups milk, 2 large eggs, 4 tbsp butter
Add in all the cheeses, and sprinkle in the seasonings. Fold in the ingredients
2 cups sharp cheddar cheese, 1 cup gouda cheese, 1 cup havarti cheese, 8 oz velveeta cheese, 1 tsp seasoning salt, 1/2 tsp ground black pepper
Sprinkle the bacon crumbs on top, and bake uncovered for 35 minutes.
1/2 cup real bacon crumbs
Let sit for 5 minutes before serving.