Zucchini Fennel Frittata

Name: Zucchini Fennel Frittata
Ingredients: * 1 tablespoon olive oil; * 1/2 medium yellow onion, thinly sliced; * 1 large clove garlic, finely minced; * 2 cup thinly sliced fennel; * 1 medium zucchini, spiralized or small dice (i like to spiralize); * 12 cherry tomato, cut in 1/2; * 7 large egg; * 2 ounce goat cheese; * kosher salt; * black pepper