1-First Step: Gather and Prep Your Ingredients Start by pulling together all your ingredients to make the process smooth. Chop the onion, bell pepper, and any greens, and crumble the sausage if it’s not already. This mise-en-place step takes about 5 minutes and helps everything go faster.

2-Second Step: Cook the Sausage and Veggies Heat 2 tablespoons of olive oil in an oven-safe skillet over medium heat for 1-2 minutes. Add the 200 grams of sausage and cook for 5 minutes until browned, stirring occasionally to even it out. Then, toss in the chopped onion and bell pepper, cooking for another 3 minutes until they soften and release their flavor.

3-Third Step: Mix in the Eggs In a separate bowl, whisk the 6 large eggs with 1 teaspoon salt and 1/2 teaspoon black pepper for about 1 minute until fluffy. Stir in the 100 grams of chopped spinach or kale and the cooked sausage mixture. Pour this into the skillet, spreading it evenly, and let it cook on the stovetop for 2-3 minutes until the edges start to set.

4-Fourth Step: Bake to Perfection Preheat your oven to 375 degrees Fahrenheit while the eggs are setting. Once the edges firm up, sprinkle the 100 grams of grated cheese on top and transfer the skillet to the oven. Bake for 10-12 minutes until the center is fully set and reaches an internal temperature of 160 degrees Fahrenheit for safety.

5-Fifth Step: Cool and Serve Remove the frittata from the oven and let it cool for 5 minutes to make slicing easier. Cut into wedges and serve warm, perhaps with a side of toast or fresh fruit. This final step ensures the flavors meld together for the best taste, and the whole process fits into under 30 minutes.