Ingredients
Equipment
Method
- Preheat your oven to 400°F (200°C). Toss the squash cubes with a tablespoon of olive oil and spread them on a baking sheet. Roast for 20-25 minutes until tender and slightly caramelized, filling your kitchen with warm, sweet scents.
- While the squash roasts, heat the remaining tablespoon of olive oil in a skillet over medium heat. Add the sliced onions and cook, stirring occasionally, until they are golden brown and fragrant, about 10 minutes.
- In a large bowl, whisk together the eggs, milk, chopped thyme, salt, and pepper until well combined and slightly frothy, giving the eggs a light, airy texture.
- Add the roasted squash, caramelized onions, and crumbled cheese (if using) to the egg mixture. Gently fold everything together until evenly distributed, ensuring the ingredients are coated with the eggs.
- Transfer the mixture into a greased ovenproof skillet or baking dish, spreading it out evenly. The mixture should fill the dish about three-quarters full to prevent spilling during baking.
- Bake in the preheated oven for 20-25 minutes, or until the eggs are puffed, set, and lightly golden on top. You’ll hear a gentle bubbling as it finishes baking.
- Remove the frittata from the oven and let it rest for a few minutes. This helps it set further and makes slicing easier. Cut into wedges and serve warm or at room temperature.
Notes
Feel free to swap in seasonal vegetables or herbs for variety. This dish is great for breakfast, brunch, or a light dinner.