Friendship Spaghetti Pie

Ingredients

• 1 lb dry spaghetti
• 1 lb lean ground beef
• 4 tablespoons butter
• 1/2 small yellow onion, diced
• 1 (32 oz) jar marinara sauce
• 4 large eggs, beaten
• 1 cup parmesan cheese, grated
• 1 1/2 cups ricotta cheese
• 1 clove garlic, minced
• 1 teaspoon dried basil
• 2 cup mozzarella cheese, grated
• Kosher salt and freshly ground black pepper, to taste
• 2 9-inch pie pans (aluminium)