1medium sweet potatoabout 10 oz, cut into ½ inch cubes
1teaspoonkosher saltdivided
2clovesgarlicminced
2teaspoonsfresh thyme or chopped sage or rosemary
1/2teaspoonsmoked paprika
8large eggs
¼cuphalf-and-halfor whole milk or heavy cream
¼teaspoonpepper
2cupsbaby spinach
1/4cupcrumbled feta
Instructions
Preheat the oven to 400.F
In a 10 inch cast iron skillet, heat the olive oil over medium heat. Add the sweet potatoes, onions, and 1/2 teaspoon of salt, to the skillet. Cook, stirring occasionally, until the sweet potatoes are fork tender, about 10 minutes.
Add the garlic, thyme, and paprika, stir to combine and cook 1 minute longer.
Add the spinach and cook until wilted, about 2-3 minutes longer. Spread the vegetables evenly at the bottom of the pan.
While the vegetables are cooking, in a large bowl, whisk together the eggs, half-and-half, the remaining ½ teaspoon of salt, and a few grinds of black pepper.
Pour the egg mixture evenly over the vegetables in the pan and sprinkle the feta evenly over the top.
Transfer from the stovetop to the oven. Bake the frittata for 12-14 minutes until set and slightly golden. Cut into slices and serve warm or at room temperature.
Video
Notes
How to store and reheat frittata
Store leftover frittata in an airtight container in the refrigerator for up to 4 days. Reheat in a covered dish in the oven at 375F for best results. I have also simply re-heated frittata in the microwave many times with very decent results!You can also freeze it for up to 3 months. To reheat from frozen, place on a cookie sheet and slowly reheat in a 275F oven.