1. 1. Preheat the oven to 375°F (190°C).

2. 2. Peel and dice the Yukon gold potatoes into small cubes.

3. 3. In a skillet, cook the ground turkey until browned. Add chopped onion and cook until translucent.

4. 4. Layer the cooked ground turkey mixture at the bottom of a baking dish.

5. 5. Top the turkey mixture with the diced potatoes.

6. 6. Beat the eggs in a bowl and pour them over the turkey and potatoes.

7. 7. Sprinkle shredded pepper jack cheese on top.

8. 8. Bake in the preheated oven for 25-30 minutes, or until the eggs are set and the cheese is melted and bubbly.

9. 9. Let it cool slightly before serving.

10. 10. Enjoy your Turkey and Potato Breakfast Casserole!