One-Pan Ham Swiss Frittata (Printable Version)

Protein-rich frittata with ham, Swiss cheese, spinach, and tomatoes. Simple one-skillet prep for quick meals.

# Ingredient List:

→ Eggs & Dairy

01 - 8 large eggs
02 - 1/4 cup whole milk
03 - 1 cup shredded Swiss cheese

→ Meats

04 - 1 cup diced cooked ham

→ Vegetables

05 - 1/2 cup diced yellow onion
06 - 1 cup chopped baby spinach
07 - 1/2 cup cherry tomatoes, halved

→ Spices & Seasonings

08 - 1/2 teaspoon salt
09 - 1/4 teaspoon black pepper
10 - 1/4 teaspoon dried thyme

→ For Cooking

11 - 1 tablespoon olive oil

# Directions:

01 - Set the oven to 375°F and allow it to fully preheat.
02 - Warm olive oil in a 10–12 inch oven-safe skillet over medium heat. Add diced yellow onion and cook for 3 minutes until translucent.
03 - Stir in diced cooked ham and cook for 2 minutes. Add chopped spinach and halved cherry tomatoes; cook until spinach is wilted, about 1 minute.
04 - In a mixing bowl, whisk together large eggs, whole milk, salt, black pepper, and dried thyme. Incorporate half the shredded Swiss cheese.
05 - Pour the egg mixture evenly over the ham and vegetables in the skillet. Sprinkle remaining Swiss cheese on top.
06 - Cook on the stovetop for 2–3 minutes, allowing the edges to begin setting.
07 - Transfer skillet to the preheated oven and bake for 12–15 minutes, until the frittata is puffed and set in the center.
08 - Remove from oven, let cool briefly, then slice and serve warm or at room temperature.

# Expert Advice:

01 -
  • You'll secretly love how the Swiss cheese gives every bite a nutty richness, making it feel gourmet without the extra effort.
  • This frittata won me over because I can toss in whatever veggies are left in the fridge, and it's still delicious every time.
02 -
  • If you rush and skip wilting the spinach in the skillet first, the frittata becomes watery and loses its pleasant texture.
  • Switching Swiss cheese for Gruyère once turned it ultra-melty—the flavor deepened, and everyone asked for seconds.
03 -
  • Whisking the eggs until completely blended—no streaks—makes the texture tender and airy.
  • The secret is letting the frittata rest for a few minutes before slicing—it sets perfectly and tastes even better.
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