Pasta with Zucchini, Tomatoes and Creamy Lemon-Yogurt Sauce

whole wheat linguine (or your pasta of choice)

nonfat plain Greek yogurt

grated Parmesan cheese

grated lemon zest

salt

ground black pepper

olive oil

medium (8-ounce) zucchini, cut into thin strips (3 inches long and 3/4 inch wide, like a big stick of gum)

garlic cloves, thinly sliced

grape or cherry tomatoes, halved lengthwise