1
Preheat oven to 350 degrees. Spray a 1-1/2-qt casserole dish with cooking spray and set aside.
2
Heat large pot over medium heat and add the milk, flour, 1 cup sharp cheddar cheese, Mexican Style cheese, , onion powder, garlic powder and cayenne red pepper and whisk until the cheese begins to melt.
3
Remove from the heat and stir in the pasta, diced tomatoes and spinach and continue to mix until the spinach is wilted.
4
Pour the macaroni and cheese into a 1-1/2-qt. casserole dish. Sprinkle with 1/2 cup sharp cheddar cheese and the breadcrumbs. Bake for 20 minutes or until the cheese is bubbly.