Directions
<ol class="no-list-style"> <li class="MethodStepper"> <h4 class="step-title">Step 1</h4> Preheat your oven to 180°C (350°F). Position the rack in the middle of the oven to ensure even cooking of your frittata. </li> <li class="MethodStepper"> <h4 class="step-title">Step 2</h4> In a large bowl, whisk together the eggs, milk (or cream), salt, black pepper, and red pepper flakes (if using) until well combined and slightly frothy. This thorough whisking incorporates air into the eggs, which helps create a lighter, fluffier texture in your finished frittata. </li> <li class="MethodStepper"> <h4 class="step-title">Step 3</h4> Heat the olive oil in your oven-safe skillet over medium heat. Add the diced onion and sauté for about 3-4 minutes until they begin to soften and become translucent. This slow cooking releases the onion's natural sweetness, adding depth to your frittata. </li> <li class="MethodStepper"> <h4 class="step-title">Step 4</h4> Add the bell pepper and zucchini to the skillet and cook for another 4-5 minutes until the vegetables begin to soften but still maintain some firmness. Then add the garlic and cook for 30 seconds until fragrant. Be careful not to brown the garlic as it can become bitter. </li> <li class="MethodStepper"> <h4 class="step-title">Step 5</h4> Add the spinach to the skillet and stir until wilted, about 1-2 minutes. The spinach will dramatically reduce in volume as it cooks. Ensure the vegetables are evenly distributed across the bottom of the pan to create a balanced frittata. </li> <li class="MethodStepper"> <h4 class="step-title">Step 6</h4> Pour the egg mixture over the vegetables in the skillet. Gently stir once or twice to ensure the eggs reach the bottom of the pan and the vegetables are evenly distributed. Allow the mixture to cook undisturbed for 2-3 minutes until the edges begin to set. </li> <li class="MethodStepper"> <h4 class="step-title">Step 7</h4> Sprinkle the grated cheese evenly over the top of the frittata. The cheese will create a beautiful golden crust as it bakes and adds richness to complement the vegetables. </li> <li class="MethodStepper"> <h4 class="step-title">Step 8</h4> Transfer the skillet to the preheated oven and bake for 15-18 minutes, until the frittata is set in the center and the top is lightly golden. The frittata should puff up slightly and a knife inserted in the center should come out clean. Don't overbake or the eggs will become rubbery. </li> <li class="MethodStepper"> <h4 class="step-title">Step 9</h4> Remove from the oven and let the frittata rest for 5 minutes. This resting period is crucial as it allows the eggs to finish cooking from residual heat and makes the frittata easier to slice cleanly. </li> <li class="MethodStepper"> <h4 class="step-title">Step 10</h4> Sprinkle with fresh herbs, slice into wedges, and serve warm. The frittata can also be enjoyed at room temperature, making it perfect for make-ahead meals. Leftovers can be refrigerated for up to 3 days and gently reheated or enjoyed cold. </li> </ol>