A high-protein meal-prep breakfast casserole with crispy smashed potatoes, savory turkey sausage, peppers, and a cheesy cottage-cheese egg bake.
Step 1: Heat the oven
Preheat the oven to **425°F (220°C)**. Lightly coat a large baking dish with **light cooking spray**.
Step 2: Smash and crisp the potatoes
Add the **boiled potatoes** to the baking dish and smash them flat (use the bottom of a glass or measuring cup). Season with **salt, pepper, and garlic to taste**, then lightly spray the tops with **cooking spray**. Bake at **425°F** while you prepare the filling, until the potatoes start to crisp, about **10–15 minutes**.
Step 3: Brown the sausage
Cook the **turkey breakfast sausage** in a skillet over medium-high heat until fully browned and cooked through. Season with **salt, pepper, and garlic to taste** if needed. Drain excess fat if desired.
Step 4: Blend the egg mixture
Blend the **eggs** and **cottage cheese** with **salt, pepper, and garlic to taste** until smooth.
Step 5: Assemble the casserole
Scatter the **browned sausage** evenly over the potatoes, then add the **chopped bell peppers**. Pour the blended **egg mixture** over everything. Top with **grated Parmesan**.
Step 6: Bake until set
Bake at **425°F** for **25–30 minutes**, or until the center is set (no longer jiggly) and the top is lightly golden.
Step 7: Broil for extra crisp (optional)
Turn on the **broiler** for **1–3 minutes** if you want the potatoes/top more crispy. Watch closely to prevent burning.
Step 8: Rest and finish
Rest for **10 minutes**, then slice into **8 servings**. Top with **green onion**.
| Calories | 407 kcal |
| Protein | 39g |
| Carbs | 20g |
| Fat | 19g |