Creamy lemon pasta with spinach and peas

Pasta and macaroni Italian cuisine

1 cup frozen peas ¾ cup cream ½ teaspoon red pepper flakes 2 garlic cloves, peeled and smashed 4 cups baby spinach, stems removed 1½ teaspoons grated lemon zest 3 teaspoons lemon juice 1 pound dried pasta, such as farfalle or casarecce, cooked Freshly grated Parmesan