I mix half a tub of ASDA quark (125g) with two eggs and 20g of finely chopped vintage cheddar (because I am too lazy to get the cheese grater out before breakfast), then fry mushrooms, spring onions, peppers, spinach, chives and whatever other veg needs using up, in half a teaspoon of avocado oil in a non stick pan, then mix in the cheesy egg & quark, put a lid on the pan and it turns into a high protein omelette with lots of healthy vegetables, 302 calories, 29g protein, 3g fibre and if you serve it with a hovis farmhouse cheddar muffin that gives you another 8g protein, 2g fibre for 163kcals.
So that's 37g of protein, 5g fibre, plenty of healthy veg, for just 465kcals, it's my favourite breakfast.
I also do boil in the bag kippers, on a bed of frozen chopped spinach (nuked in the microwave and then "creamed" by the addition of 100g of ASDA's quark, plus loads of herbs and seasoning) with a poached egg, another high protein breakfast.
Both breakfasts are best served with turmeric and black pepper kimchi from Loving Foods, (also the new kimchi ketchup from Vadasz is perfect if you haven't yet developed a taste for fermented vegetables), and a glass of kombucha, because getting your gut microbiome on side is a huge help in sustainable weight loss.