Preheat your oven to 350 degrees.

Next, you’ll cook your spaghetti following the directions on the packaging. Make sure it’s cooked al dente and then drain the excess liquid.

Put your beef, onion, and green pepper into a large skillet and cook it on medium heat. This should break your beef into small crumbles with no pink. Use a spatula or spoon to break up the beef if this does not happen.

Drain the excess liquid from the skillet.

Add in your tomatoes, tomato paste, sugar, and seasonings. Stir them in generously with your beef and other ingredients.

Whisk together egg whites, melted butter, and parmesan cheese until it is well blended. Add in the spaghetti and stir it well. Press this mix into a greased 9-inch deep-dish pie plate. This should form a crust.

Spread cottage cheese onto the crust along with the earlier beef mixture.

Bake this uncovered for twenty minutes. Add some mozzarella cheese on top. Bake again until the cheese is thoroughly melted.

Let the dish sit for five minutes and serve!