Easy Frittata With Potatoes, Red Peppers, and Spinach
This easy frittata is packed with tender potatoes, sweet red bell peppers, and fresh spinach, baked to fluffy perfection in a cast-iron skillet.
- Par-cooking the potatoes ensures they are buttery and tender, not chalky.
- Squeezing the spinach prevents excess water from breaking the delicate egg protein matrix.
- Baking at a moderate temperature keeps the eggs custardy and prevents them from collapsing into rubber.
My first real kitchen disaster involved a rubbery, grey-ringed frittata that I tried to flip onto a plate in my tiny college apartment. Half of it slid right behind the stove.
I cried.
Most skillet egg bakes fail because eggs are incredibly sensitive to heat. Raw veggies release water and turn the dish into a soggy mess.
Bear with me here, because this is where the physics of egg proteins comes into play. If you don't cook out the vegetable water first, the steam will literally tear the delicate protein matrix apart.
The simple fix is par-cooking your potatoes and squeezing the life out of your spinach before they ever touch an egg.
By sautéing the red peppers and potatoes first, you build a caramelized foundation that clings to the egg matrix beautifully. It is hands down the easiest way to get a fluffy, restaurant-quality skillet breakfast without any fussy flipping.
Easy Frittata With Potatoes, Red Peppers, and Spinach
Ingredients
- 8 large eggs
- 1/4 cup heavy cream
- 1/2 tsp Diamond Crystal kosher salt
- 1/4 tsp freshly cracked black pepper
- 2 tbsp olive oil
- 1 medium Yukon Gold potato, peeled and diced into 1/2-inch cubes
- 1/2 medium red bell pepper, diced
- 2 cups fresh baby spinach, roughly chopped
- 1/2 cup shredded sharp cheddar cheese
Directions
- Preheat your oven to 375°F (190°C).
- Whisk the eggs, heavy cream, Diamond Crystal kosher salt, and black pepper in a medium bowl until completely cohesive and slightly frothy. Whisk until your wrist aches slightly to ensure the whites and yolks are completely integrated.
- Heat the olive oil in a 10-inch oven-safe cast-iron skillet over medium heat. Add the diced potatoes and cook, stirring occasionally, until they are golden brown and fork-tender, about 8 to 10 minutes.
- Toss the diced red bell peppers into the skillet with the potatoes and sauté for another 3 to 4 minutes until softened.
- Stir in the chopped spinach and cook just until wilted, which should take about 1 minute.
- Pour the whisked egg mixture directly over the vegetables in the skillet, tilting the pan slightly to ensure the eggs distribute evenly.
- Sprinkle the shredded cheddar cheese evenly over the top of the egg and vegetable mixture.
- Transfer the skillet to the preheated oven and bake for 12 to 15 minutes, or until the center is just set and the edges are lightly golden. Let it cool for 5 minutes before slicing.
Notes
- I highly recommend using Diamond Crystal kosher salt for this recipe; if you only have standard table salt, cut the measurement in half to avoid an overly salty bite.
- Adding a splash of heavy cream introduces fat that coats the egg proteins, preventing them from bonding too tightly and squeezing out water as they bake.
- Keep a close eye on your potatoes during the skillet sauté; if they start to char before they are tender, lower the heat immediately to prevent bitter, burnt edges in your final bake.
- Leftovers will release a small amount of moisture as they sit in the fridge, which is completely normal for baked egg dishes.
- If you prefer a lighter, crustless option without potatoes, try our spinach tomato ricotta crustless quiche.
Serving Suggestions
Complete your brunch spread by pairing this skillet bake with fresh, vibrant sides that cut through the richness of the eggs.
- A crisp green salad tossed in a light vinaigrette.
- Thick slices of toasted sourdough or savory egg biscuits.
- A slice of sweet lemon coffee cake.
- Crispy bacon strips or warm breakfast sausages.
- A cold glass of freshly squeezed orange juice or a homemade iced strawberry latte.
Storage and Reheating
Store any leftover slices in an airtight container in the refrigerator for up to three days.
To reheat, avoid the microwave if you can because it turns the egg proteins rubbery and tough. Instead, slide a slice into a toaster oven or a dry skillet over low heat, covering it with a lid to trap the steam.
I do not recommend freezing this dish. The potatoes will turn grainy and wet.
Chop your veggies the night before to save time.
This simple prep step makes morning assembly incredibly fast and stress-free. You can also whip up some cottage cheese egg bites if you need a grab-and-go option for the week.
Ingredient Substitutes
Feel free to swap ingredients based on what you have in your crisper drawer.
- Yukon Gold Potatoes: Swap with sweet potatoes or even leftover roasted red potatoes.
- Baby Spinach: Kale or Swiss chard work beautifully, just sauté them a minute longer.
- Cheddar Cheese: Feta, goat cheese, or gruyère add a lovely, tangy contrast.
- Heavy Cream: Whole milk or sour cream can be used to maintain the creamy texture.
Let me know how your skillet turns out, and don't worry if your first slice isn't absolutely perfect—it will still taste incredible.
Susan Rosie
I've spent over 12 years perfecting recipes so you can cook with confidence. Every dish on Storied Skillet is tested multiple times – because your dinner matters. I believe in simple ingredients, clear instructions, and big flavors.
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