Tomato-Basil Chicken Pasta

Ingredients

• 1 pound boneless, skinless chicken breast, diced into 1-inch pieces
• 12 ounces penne pasta
• 2 tablespoons olive oil
• 1 medium yellow onion, diced
• 3 cloves garlic, minced
• 1 (28 ounce) can diced tomatoes, undrained
• 1 cup chicken broth
• 2 tablespoons tomato paste
• 1 teaspoon dried oregano
• 1/2 teaspoon red pepper flakes
• 1/2 cup fresh basil, chopped, plus more for garnish
• 1 1/2 teaspoons salt
• 3/4 teaspoon black pepper, freshly ground
• 1/2 cup shredded Parmesan cheese, for serving
• 4 slices garlic bread