Step 1: Prepare the Eggs
In a medium-sized mixing bowl, crack all 8 large eggs. Add the milk (or heavy cream), salt, and black pepper. Whisk the mixture together vigorously with a fork or a whisk for about 30 seconds. You’re looking for a uniform, pale yellow color with a slightly frothy top. Be careful not to over-whisk, as this can make the eggs tough; you just want the yolks and whites to be fully combined. Set the bowl aside for a moment.

Step 2: Sauté the Harder Vegetables
Place a large non-stick skillet or frying pan over medium heat. Once the pan is warm, add the olive oil or butter. When the butter is melted or the oil shimmers, add the diced yellow onion and red bell pepper to the pan. Sauté for 4-5 minutes, stirring occasionally with a spatula. You want the onions to become translucent and fragrant, and the peppers to soften slightly while still retaining a bit of their bite. This step is crucial for developing the foundational flavors of the dish.

Step 3: Wilt the Spinach
Once the onions and peppers are softened, add the 2 cups of fresh spinach to the skillet. It will look like a lot at first, but don’t worry. Stir the spinach continuously into the hot vegetables. It will begin to wilt almost immediately and cook down significantly in about 1-2 minutes. Continue to cook until all the spinach is wilted and has turned a vibrant dark green.

Step 4: Cook the Scramble
Turn the heat down to medium-low. This is a critical step for preventing dry, rubbery eggs. Pour the whisked egg mixture directly over the cooked vegetables in the skillet. Let the eggs sit and cook undisturbed for about 20-30 seconds, until you see the edges just beginning to set.

Step 5: Fold, Don’t Stir
Using a silicone or rubber spatula, gently push the eggs from the edges of the pan toward the center. Tilt the pan to allow the uncooked liquid egg to flow into the empty space. Continue this gentle pushing and folding motion every 15-20 seconds. This method creates large, soft curds instead of small, dry crumbles. Avoid frantically stirring the eggs.

Step 6: Add Cheese and Finish
When the eggs are about 90% cooked (they should still look slightly wet and glossy), remove the skillet from the heat. The residual heat in the pan will finish cooking them to perfection. If using, sprinkle the shredded cheddar cheese over the top. Gently fold the eggs one or two more times to distribute the cheese and let it melt. Serve immediately for the best taste and texture.