Preheat oven to 375 F. Grease a 9x13 baking dish. Set aside.
Into a large skillet over medium heat, add 1 Tbsp of avocado oil along with the chopped bell peppers and onion. Saute for about 5-10 minutes then add the sliced mushrooms and continue to saute until onions are translucent.
Then, add the ground turkey to the skillet and continue to cook until turkey is done. Once it's done add the turkey sausage seasonings and continue to cook for 5 more minutes making sure everything is coated with the seasonings. Turn off the heat once done.
In a large mixing bowl, add the eggs, egg whites, pizza sauce, ground flax, 1 tsp garlic powder, 1 tsp Italian seasoning, and 1/2 tsp sea salt. Whisk until fully combined. Then, stir in the spinach, beans, and turkey pepperoni.
Add the cooked ground turkey/bell pepper mixture to the bottom of the baking dish first then pour the egg mixture evenly over top. Bake the dish for 40 minutes or until the eggs are fully set. Let cool for at least 10 minutes for slicing and serving. Let cool completely before transferring to meal prep containers.