Breakfast recipe · from the recipe book

Sheet-Pan Mushroom Onion Egg Bake with Sweet Potato

Name: Sheet-Pan Mushroom Onion Egg Bake with Sweet Potato
Prep time: 25 min
Cook time: 35 min
Total time: 1 h
Yield: 4 servings
Ingredients: 2½ medium (300 g) Sweet potatoes, peeled and cut into 1/2-inch cubes; 4¼ cups sliced (300 g) White mushrooms, sliced; 2 medium (200 g) Yellow onion, thinly sliced; 1½ tbsp (20 g) Olive oil; 1 tsp (1 g) Dried thyme; 8 large (400 g) Eggs; ½ cup (120 ml, 120 g) Milk, 2%; 3 oz (80 g) Part-skim mozzarella, shredded; 3 tbsp grated (20 g) Grated Parmesan; 2 cups loosely packed (60 g) Baby spinach, roughly chopped; ¼ tsp (2 g) Salt; ½ tsp (1 g) Black pepper; 1 medium (15 g) Green onions, thinly sliced

Roasted sweet potato and thyme-browned mushrooms and yellow onion set in a fluffy, Parmesan-and-mozzarella egg custard with a golden top.

Sheet pan
1 hr · 25 min hands-on
Serves 4
Vegetarian
Gluten-free

Up to 30 g carbs
Protein 20 g+
500 calories or less

Ingredients

2½ medium300 gSweet potatoespeeled and cut into 1/2-inch cubes
4¼ cups sliced300 gWhite mushroomssliced
2 medium200 gYellow onionthinly sliced
1½ tbsp20 gOlive oil
1 tsp1 gDried thyme
8 large400 gEggs
½ cup (120 ml)120 gMilk, 2%
3 oz80 gPart-skim mozzarellashredded
3 tbsp grated20 gGrated Parmesan
2 cups loosely packed60 gBaby spinachroughly chopped
¼ tsp2 gSalt
½ tsp1 gBlack pepper
1 medium15 gGreen onionsthinly sliced

Steps

Preheat the oven to 425°F (220°C) and line a quarter sheet pan (about 9x13 inches) with parchment.
On the pan, toss the sweet potato, mushrooms and yellow onion with the olive oil, the thyme, half the salt and half the black pepper; spread in one layer.
Roast for 20 to 25 minutes, stirring once, until the sweet potato is tender and the mushrooms and yellow onion are browned.
While the vegetables roast, whisk the eggs, milk, the remaining half of the salt and the remaining half of the black pepper in a bowl until smooth to make the egg mixture.
Take the pan out and lower the oven to 375°F (190°C). Scatter the spinach over the hot vegetables so it wilts, then spread the vegetables evenly.
Pour the egg mixture over the vegetables, then sprinkle the mozzarella and the Parmesan on top.
Bake 15 to 18 minutes, until the center is set and reaches 160°F (71°C).
Rest 5 minutes, sprinkle with the green onions and cut into 4 pieces.

Contains: Milk, Egg.

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Saved in the Every Helping recipe book on October 24, 2026.

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Sheet-Pan Mushroom Onion Egg Bake with Sweet Potato

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