I couldn't find the actual recipe, may be in my upstairs stash of books. They originated with low-carb diets but what that means is they're protein-dense and filling.
But it's basically a crustless quiche recipe, made in muffin tins - silicone ideally as otherwise they stick, or you can line the cups of tins with baking paper.
Or if you don't have muffin tins make one large round one, silicone still best though.
Whisk together 4-6 eggs, a small pack of cream cheese, cream or milk plus grated cheese and seasoning. Put eg chopped chorizo or cooked bacon, sausage into muffin tins, then add mixture.
Bake at about 170c for 20-30 mins.
They keep well and can also be frozen then thawed or microwaved.
Quantities vary according to how filling you need them to be, and how many you want to make so I make them with just 2 or 3 eggs plus milk, rather than the cream cheese etc, but they're still really filling.
With 6 eggs you can make 12.
Vary the flavours, eg cooked mushroom & spinach, chopped cooked peppers, slice of tomato on top, etc.
One or two of those for breakfast and/or to have with you as a snack should keep you going for ages.
