Baked eggs brunch

This low-calorie vegetarian breakfast with sundried tomatoes, spinach, leeks and cheese is the perfect way to start a day.   Ingredients (4 servings): 2 tbsp olive oil 2 leeks, thinly sliced 2 onions, thinly sliced 2 x 100g bags baby spinach leaves handful fresh whole meal breadcrumbs 25g Parmesan (or vegetarian alternative), finely grated 4…