Leah's Famous Caterpillars and Cheese - Today's Parent

Ingredients

• 2 cups grated cheddar
• 1 cup grated Swiss
• 1/4 cup grated Parmesan
• 8 cups uncooked rotini, (but they'll always be caterpillars to us)
• 3 tbsp butter
• 1/4 cup all-purpose flour
• 2 garlic cloves, squished (or more, less or none)
• 2 tsp mustard, (Dijon, if you have it)
• 3 cups milk
• 1/2 tsp salt
• 1/4 tsp black pepper