If you can get your hands on some fresh squash or zucchini blossoms this summer, then you've got to make this ricotta and squash blossom pizza! Start with an easy, homemade pizza crust, then top with walnut-basil pesto, 3 different types of cheese, sliced zucchini and squash blossoms. The combination of these ingredients results in a savory, creamy pizza that's good for you too!