Purple Sprouting Broccoli and Spinach Frittata

Preheat oven to 375°F (190°C).

Heat olive oil in an oven-safe skillet over medium heat. Add red onion and cook until softened, about 5 minutes. Add garlic and cook for another minute until fragrant.

Add purple sprouting broccoli to the skillet and cook for 5-7 minutes, or until slightly tender. Add spinach and cook until wilted, about 2 minutes.

In a large bowl, whisk together eggs, milk, salt, and pepper.

Pour the egg mixture over the vegetables in the skillet. Stir gently to combine.

Crumble feta cheese evenly over the top of the frittata.

Transfer the skillet to the preheated oven and bake for 20-25 minutes, or until the frittata is set and lightly golden brown.

Let cool slightly before slicing and serving.