Cheesy Rigatoni Bake

Directions

1. Preheat oven to 375°. In a 6-qt. stockpot, cook pasta according to package directions. Drain; return to pot. Cool slightly.
2. Meanwhile, in a small saucepan, melt butter over low heat. Stir in flour and salt until smooth; gradually whisk in milk and water. Bring to a boil, stirring constantly; cook and stir until thickened, 1-2 minutes. Remove from heat.
3. Add eggs to pasta, tossing to coat. Divide mixture between two greased 8-in. square baking dishes. Layer each dish with one can tomato sauce, 1 cup mozzarella cheese and half of the white sauce; sprinkle with Parmesan cheese. Bake, uncovered, until a thermometer reads 160°, 30-35 minutes.