Penne Rosa with Parmesan Crusted Chicken

Ingredients (11 items)

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• 2 cups grated Parmesan cheese
• 1 (16 ounce) package penne pasta
• 4 skinless, boneless chicken breast halves
• 3 egg whites, lightly beaten
• 2 (16 ounce) jars Alfredo sauce
• 2 (14.5 ounce) cans Italian-style diced tomatoes
• 1 (8 ounce) can tomato sauce
• ¼ teaspoon red pepper flakes, or to taste
• 1 (8 ounce) package sliced fresh mushrooms
• 1 (8 ounce) package fresh spinach
• 1 cup grated Parmesan cheese