Artichoke. Spinach Dip

Name: Artichoke. Spinach Dip
Ingredients: 1 can (15.5 ounces) artichoke hearts in water, drained; 4 cups chopped raw spinach; 2 cloves garlic, minced; 1 teaspoon ground black pepper; 1 teaspoon minced fresh thyme (or 1/3 teaspoon dried); 1 tablespoon fresh minced parsley (or 1 teaspoon dried); 1 cup prepared unsalted white beans (or half a 15.5-ounce can unsalted white beans, rinsed and drained); 2 tablespoons grated Parmesan cheese; 1/2 cup low-fat sour cream