Pasta Primavera with Cauliflower Sauce Recipe

Ingredients

• 1 tablespoon olive oil
• 1/2 cup chopped onion
• 2 cloves garlic, minced
• 3 cups cauliflower florets
• 3/4 cup vegetable broth
• 6 ounces multigrain spaghetti, uncooked
• 1/2 cup finely shredded Parmesan cheese, plus more for garnish
• 1/3 cup water
• 1/8 teaspoon black pepper
• 4 cups broccoli florets, cut into 1-inch pieces
• 1 red bell pepper, cut into bite-size strips
• 2 tablespoons sliced fresh basil
• 1 tablespoon lemon juice
• 1 teaspoon lemon zest