Ah, the 2-year-old foodie, they can be so particular! Most kids have a bit of a drop of appetite in that toddler phase, so if his pedi is not concerned, his little diet of a few bites of sausages, apples and kiwi may be all he needs. (It doesn't seem balanced, to us it is boring, but....I actually have a friend whose lovely daughter, now a healthy young adult, only ate rice and plain pasta for most meals at that age. She is not an overweight young woman.) It is frightening for caring parents, though, to see their little ones pick a few bites and be done.
Different families have different rules about meal times, and it is really nice to that you are wanting to have nice meals with him, sincet good meal time routines are important. So caring that you are trying to think of different meal ideas before setting in for the night.
I don't have specific ideas for you, except to recall that when my children were small, I would sometimes be so tired that I just fed them something out of a box (e.g, mac and cheese ). They always loved the box meals, not the healthy meals that I tried to make with plenty of fresh veggies, and fruit salad on the side, and so forth. It can drive you to distraction!
This link (midway down the page) has some very simple recipes for the little ones; sometimes if they "help" make it, they can be a little more inclined to try to eat them. http://http://www.first5kids.org/parents/childrens_obesity
(The page is on healthy eating due to the obesity epidemic, which is not your concern, but the recipe suggestions seek fine. Healthy and simple.)
Another resource might be to look at the Zero to Three website, which has wonderful, centering and informative articles on all aspects of parenting the very young child. Here is their nutrition page, including sections on the feeding relationship. http://http://www.zerotothree.org/child-development/health-nutrition/tips-and-tools-on-health-and.html
Hopes this helps some. Get some rest; I'm going to see if I can sleep. Night, J.