1. Preheat & Whisk 

Preheat your oven to 350° F and grab a mixing bowl. Add eggs, milk, salt, and pepper to the bowl and whisk until well combined. Then, set the mixture aside.

2. Sauté Spinach 

Place a large skillet over medium heat and drizzle in olive oil. Add diced onion and minced garlic, and sauté until softened and fragrant, this should take about 3-4 minutes. Then, add spinach and cook for about 2 minutes, until wilted.

3. Add Tomatoes and Feta 

Add halved cherry tomatoes, and stir to combine with the spinach. Then sprinkle crumbled feta cheese evenly over the vegetables.

4. Add Eggs

Pour in the whisked egg mixture. Then gently stir to distribute the ingredients evenly.

5. Start on the Stove

Cook the frittata on the stovetop for about 3-4 minutes, or until the edges are set but the center is still slightly runny.

6. Now Bake

Transfer the skillet to the oven and bake for 12-15 minutes, or until the frittata is set and the top is lightly golden brown.

7. Garnish and Serve 

Remove the frittata from the oven and let it cool slightly. Garnish with fresh herbs, slice into wedges, and serve warm.