In medium skillet, brown Ground Turkey. Season with Salt & Pepper. Set aside. In large skillet, Add Olive Oil. Saute Onion, Bell Peppers, & Mushrooms. Add in Black Beans. Season with Salt, Pepper, & Garlic Powder. Add Turkey, mixing all the ingredients well. Turn to med-low heat.
In a bowl, combine eggs & half n half, beating well. Add in Cheese and stir. Pour egg mixture over meat mixture and stir lightly to combine all the ingredients really well.
Place large skillet of the entire mixture into the oven for 20 minutes until Frittata has set and golden brown. Add a sprinkling of cheese last few minutes.