Spicy Shrimp and Penne Pasta Recipe

Ingredients

• 3 cups uncooked penne pasta (about 12 ounces)
• 1 tablespoon olive oil
• 1 tablespoon butter
• 1/2 teaspoon crushed red pepper flakes
• 2 pounds uncooked shrimp (31-40 per pound), peeled and deveined
• 1 jar (24 ounces) marinara sauce
• 3/4 cup half-and-half cream
• 4 cups chopped fresh spinach