sign up for free, input what you would normally eat, then just play around with the portion sizes per meal until you get to 5,000 calories.
as an example for 1 meal though, you'd be looking at a full cup of uncooked oatmeal (cook it afterwards of course...a half cup of dry oats is a normal serving), some fruit, a 35g protein shake, or something like 8 egg whites and a couple of yolks, and a tablespoon of natty PB.
You'll basically need about 800 cals per meal, 6 meals a day ,to hit that 5,000 mark.