I think you are way underestimating this. For example that meat cheese onions tomatoes and noodle plate:  That looks like it is at least a pound of ground beef, at 80/20 it is about 1100 kcal, what looks like 3 slices of american cheese (fucking ew) at  50kcal each, plus what looks to be a box of kraft mac and cheese at 400 kcal, plus the onions and tomatoes.  I would guess this plate is 1700 kcal at minimum. That corned beef plate looks like a lb of corned beef (900 kcal), 2 cups of mashed potatoes (430 kcal), a big chunk of soda bread (maybe 200 calories), and who knows how much mustard, cabbage, and carrots.  I am guessing about 1500 kcal for that plate.