Preheat your oven to 350°F (175°C).

In a large pot, bring salted water to a boil, then add your spaghetti. Cook until al dente, about 8-10 minutes. Drain well.

In a mixing bowl, combine the softened cream cheese, sour cream, and mayonnaise. Beat until smooth and creamy.

Stir in the eggs, garlic powder, and onion powder until well incorporated.

Add the drained spaghetti and half of the cheddar cheese to the creamy mixture. Fold until coated.

Grease the baking dish and pour in the spaghetti mixture. Top with the remaining cheddar cheese.

Bake for 30-40 minutes until bubbly and golden brown.

Let cool for 10 minutes before serving.