This delicious, easy-to-make Keto frittata recipe is a tasty, nutritionally complete, low-carb breakfast in one pan, loaded with healthy superfoods such as eggs and spinach. It is gluten-free and suitable for paleo also. You can make this low-carb breakfast frittata ahead of time for meal prep to eat for lunch, dinner, or as a snack as well—the perfect breakfast for your keto diet, paleo, or gluten-free diet.