1 In a 4-quart saucepan, bring 3 quarts of water to a boil over high heat.2 Add spaghetti, and cook according to package directions for the shortest recommended time, about 6 minutes. (Whole-wheat pasta tends to fall apart if overcooked.) 3 Reserve 1 cup of the cooking water and set aside. Drain spaghetti. 4 Add the spaghetti back into the pasta pot. Toss with olive oil and just enough reserved water to coat well. 5 Add the tomatoes, basil, mozzarella, and olives. Toss gently until well mixed.6 Divide pasta evenly among four dinner plates (about 2¼ cups each). Serve immediately.