Add ground turkey into a medium non-stick skillet over medium heat. Cook , while stirring and breaking up chunks until there is no more pink (~5 minutes). Then add in chopped bell peppers, 2 Tablespoons of water and cook until peppers are just tender (~5-7 minutes).
Season with 1/2 teaspoon of salt and 1/4 teaspoon of black pepper
Pour 1 Tablespoon of avocado oil into skillet and stir. Then add in chopped garlic and cook for about 1 minute until fragrant.
Remove from heat and set aside to cool.
Preheat oven to 350 degrees.
In a large bowl combine whole eggs , egg whites, heavy cream and whisk until creamy. Season with 1/2 teaspoon of salt and a pinch or two of black pepper.
Then add in cooked turkey with peppers, spinach and cheddar cheese. Mix well and pour into a lightly greased 8 x 6.8 baking dish. Shake to make sure everything is levelled.
Cover with foil and bake for 30 minutes. Then remove foil and bake for another 15-20 minutes or until set.
Remove from oven. Cut into individual portions and serve.