Easy Squash Tian Recipe Author: Katie Clark Prep time: 10 mins Cook time: 35 mins Total time: 45 mins Serves: 4 servings Ingredients About 15 ounces spaghetti sauce 1 zucchini 1 yellow squash 20 pepperonis (feel free to omit if you don't want them!) About 1/2 cup grated parmesan cheese Instructions Preheat oven to 375.