Chicken Fra Diavolo with Angel-Hair Pasta

Ingredients

• 1 pound boneless, skinless chicken breasts
• 1/2 teaspoon salt
• 1 teaspoon ground black pepper
• 1-2 teaspoons crushed red pepper flakes (to taste)
• 2 tablespoons plus 2 teaspoons olive oil
• 1 small yellow onion (thinly sliced)
• 4 large cloves garlic (minced, divided)
• 1 15-ounce can diced tomatoes (in puree or juice)
• 3 tablespoons tomato paste
• 1/2 cup white wine
• 1/2 teaspoon dried ground rosemary
• 1 cup frozen peas (thawed)
• 8 ounces whole-grain angel-hair pasta
• 1/4 cup chopped fresh flat-leaf parsley
• 1/3-1/2 cup shaved Parmesan, Asiago, or other hard, sharp cheese