SUPER COMFORT MAC AND CHEESE

For those of you who don't live close enough to come to book signings... here's a recipe I shared that was so popular I finally decided I'd better post it. Perfect comfort food for fall!
Olivia's Super Comforting Mac & Cheese (serves 6 - 8)
Ingredients:
2 cups milk                    1 cup Mozzarella cheese
2 tbsp butter                  1 cup shredded Parmesan, Romano, and Asiago cheese mix (Kraft)
2 tbsp flour                    1 cup Cheddar cheese
1/2 tsp salt                    1 cup chopped onion
8 oz elbow macaroni      
Topping: 1/2 cup bacon bits, 1 cup Panko and 1/2 cup grated Parmesan cheese
Directions:
For white sauce, melt butter, then mix in flour until smooth. Add salt, then gradually add milk and stir over medium heat until thick. Set aside. Sauté chopped onion until translucent and set aside. Boil macaroni until al dente. Drain, rinse and then mix in large bowl with white sauce, onion and cheeses. Transfer to a large casserole dish. For topping, mix bacon bits, Parmesan, and Panko together and sprinkle over top. Bake at 350 for 25 minutes.