Serving of casserole with 125g beef per serving is 250 calories and 34g protein, so that's a third of your protein for about a sixth of your calories.
Medium egg is 60 calories and 5.5g protein, 2 egg omelette would be 11g protein
I like the Emmi high protein iced latte drinks, each of those is 18g protein for 130 calories.
100g full fat longley farms cottage cheese is 104cal and 10g protein.
I typically eat/drink about 1200 calories a day and average 150g protein