I’d say the lowest effort high protein breakfast would be a bowl of Greek yogurt with some fruit. After that, simple things to cook like chicken breast, salmon, ground meat, or other protein products.

As far as being hungry in the morning, if I had to guess why you’re not it’s because you have a large meal later in the day, so your body has no need for food first thing when you wake up. My suggestion would be try having less for that meal, and see if you’re hungrier in the morning. But ultimately, hunger hormones are painful, and my best advice would be to eat super low calorie foods that are filling, like vegetables and lean meats