Pasta Primavera Pronto

INGREDIENTS

• 1/4 teaspoon dried hot red pepper flakes
• Accompaniment: finely grated Parmigiano-Reggiano
• 10 oz frozen cut haricots verts or green beans
• 2 cups cherry or grape tomatoes (1/2 pound), halved lengthwise
• 1/2 cup frozen chopped onions (3 ounces)
• 2 tablespoons unsalted butter
• 1 (1-lb) bag frozen broccoli florets
• 1/4 cup finely grated Parmigiano-Reggiano
• 6 garlic cloves, finely chopped
• 1 lb dried fettuccine
• 1/4 cup olive oil
• 1 cup frozen shelled edamame or baby lima beans (5 ounces)