One-Pan Ham Swiss Frittata (Printable Version)

Savory ham, Swiss cheese, and vegetables cooked in one skillet; quick, easy, and flavorful for any meal.

# What You'll Need:

→ 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

# How to Prepare:

01 - Preheat oven to 375°F (190°C) and position a rack in the center.
02 - Heat olive oil in a 10–12 inch oven-safe skillet over medium heat. Add diced onion and cook for 3 minutes until softened and translucent.
03 - Stir in diced ham and cook for 2 minutes. Add chopped spinach and cherry tomatoes; continue cooking for 1 minute until spinach is wilted.
04 - In a mixing bowl, whisk together eggs, whole milk, salt, black pepper, and dried thyme. Incorporate half of the Swiss cheese into the mixture.
05 - Evenly pour the egg mixture over the sautéed ham and vegetables in the skillet. Sprinkle the remaining Swiss cheese atop the mixture.
06 - Cook the skillet mixture on the stovetop for 2–3 minutes, allowing the edges to just begin setting.
07 - Transfer skillet to the oven. Bake for 12–15 minutes, until the dish is puffed and fully set in the center.
08 - Remove skillet from the oven. Allow to cool briefly, then slice and serve warm or at room temperature.

# Expert Suggestions:

01 -
  • No need for fancy gadgets or multiple pans—clean up takes minutes.
  • It stays fluffy and delicious whether served warm or chilled, making leftovers a treat.
02 -
  • Don't rush removing from the oven; cutting too soon makes even the perfect frittata collapse.
  • Layering the cheese both inside and on top gives the best melting and flavor with every bite.
03 -
  • Using room-temperature eggs and milk makes the frittata fluffier than straight-from-the-fridge ingredients.
  • Bake until the center barely jiggles—you'll get a custardy texture every time.
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