1612 calories is nothing! My breakfast is nearly a 1000 calories and I take in 3000-4000 calories PER DAY and I’m not even slightly overweight.
The salad, what else do they put in? Mayonnaise? Any sauces? Drop the fish fingers, fries and nuggets!!
A meal out can easily get to a 1000 calories! Candy can easily get to 500-600 calories. 2 slices of Rye Bread can have nearly 250 calories combined!
I reckon your underestimating the calories your eating. Considering the stats you gave (height, weight, age) your easily eating more than 2000 calories.