1-First, preheat your oven to 400°F (200°C) and set the rack in the middle to get everything ready.

2-In a medium bowl, beat the eggs with the cream, salt, pepper, and garlic powder until they’re well blended and set that aside.

3-Next, heat the olive oil in a 10-inch oven-safe skillet over medium heat, then add the arugula in batches, cooking it until it’s wilted but still bright green.

4-Once the arugula is ready, spread it evenly in the skillet and pour the egg mixture over it.

5-Cook on medium heat for about 4 minutes until the edges start to set.

6-At this point, scatter the crumbled feta cheese on top while the center is still a bit wobbly, then transfer the skillet to the oven.

7-Bake for 4 to 5 minutes until the center is fully set and has a bright yellow color.

8-Finally, serve it warm or at room temperature either cut slices right in the skillet or slide the whole frittata onto a plate.