Inspired by Diane Morrisey on Instagram
Ready in just an hour, serve with bagels, muffins & fruit for a crowd-pleasing feast.
Preheat oven to 375°F. Lightly coat a 9 x 13 baking dish with oil or butter.
Heat the olive oil in a large skillet. Add the chopped onion & peppers. Season with 1/2 teaspoon of the salt. Cook until softened, for about 5 minutes. Add the spinach and garlic. Toss until wilted, for about 3 minutes. Remove from the heat and stir in the dill.
Transfer to the prepared baking dish and spread in an even layer. Distribute the halved tomatoes over the entire surface.
In a large bowl, mix the eggs, milk, mustard, remaining teaspoon of salt and the freshly ground black pepper with a whisk until the eggs are completely broken up and incorporated. Carefully pour the egg mixture over the spinach mixture in the baking dish. Sprinkle evenly with the feta.
Bake until the top is light golden-brown and a knife inserted in the middle comes out clean, for 40 to 45 minutes.