Bring a large pot of salted water to a boil and cook pasta until al dente. Drain and set aside.
Blend cottage cheese until completely smooth and creamy.
In a saucepan over medium heat, add blended cottage cheese and milk. Stir until warm.
Add cheddar cheese, garlic powder, onion powder, salt, pepper, and mustard powder. Stir until melted and creamy.
Add butter if using for extra richness.
Mix cooked pasta into the cheese sauce until fully coated.
Add vegetables or protein if desired and stir well.
Adjust consistency with extra milk if needed.
Serve warm and enjoy.