Green Goddess Pasta Sauce with Avocado and Fresh Herbs

Ingredients

• 1 cup fresh basil leaves
• 1/2 cup fresh parsley leaves
• 1/4 cup fresh chives, snipped
• 2 tablespoons fresh tarragon leaves (optional)
• 1 ripe avocado, pitted and peeled
• 1/2 cup Greek yogurt (or dairy-free alternative)
• 3 tablespoons extra virgin olive oil
• 2 tablespoons fresh lemon juice (about 1/2 lemon)
• 1 garlic clove, peeled
• 2 tablespoons grated Parmesan cheese (or nutritional yeast for vegan)
• 12 oz dried pasta (spaghetti, penne, or gluten-free variety)
• Salt and black pepper, to taste
• 1/4 teaspoon red chili flakes (optional)