ZUCCHINI CARAMELIZED ONION QUICHE (+ keto option)

Name: ZUCCHINI CARAMELIZED ONION QUICHE (+ keto option)
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American
Ingredients: 1 9-inch pie crust; 1 medium zucchini (sliced thin); 1 small white onion (sliced thin); 2 tablespoons red bell pepper (diced); 1 tablespoon avocado oil; 5 large eggs; ½ teaspoon salt; ½ teaspoon fresh thyme; ⅛ teaspoon dried dill; ¼ teaspoon black pepper; ⅓ cup heavy whipping cream; 2 tablespoons parmesan cheese (freshly grated); 1 and ½ cup Gouda cheese (grated)