My kids tend to like practically any fruit and mostly sweeter tasting veggies. I make my kids fruit plates, and they absolutely love them. I usually keep several types of fruit in the house anyways. I cut them up in little bite-size pieces and put perhaps 2 or 3 kinds of fruit on a plate. Sometimes I also put some vanilla yogurt on the side. Sometimes they liked to dip the fruit in the yogurt. Other times I would put a bit of cottage cheese on the plate.
I also keep several kinds of block cheese on hand. When it's on sale, I buy it up and put it in my deep freeze. Cheese freezes great: block, prepackaged sliced, grated, string cheese. My kids really like Colby, Colby-Jack and chedder/mozzerella twist cheese sticks. I always buy the generic or store brands because it's cheaper and tastes the same as Kraft.
I make Hamburger Helper and tuna helper for my kids. I do not always put the meat in the dish. My kids seem to like the Hamburger Helper better if the meat is in itsy bitsy pieces. So... I add about a cup of water to the pan when cooking it. That seems to help the hamburger separate into smaller pieces and easier to break up as cooking. I usually use half the amount of meat and 3/4 the amount of liquid the directions state.
My kids really like sliced or bite size veggies raw with ranch and blue cheese dressing. I also steam veggies in the microwave (add bite size pieces to bowl with water up to top of veggies, cover in plastic wrap, nook for 2-3 min). I either add a bit of brown sugar onto them, garlic salt or cheese sauce over them. They gobble the veggies right up! They don't really like cooked veggies. They love cheese, so it usually tempts them to at least give it a try with a preconception they may really like it.
My kids love popcorn. I keep the low fat and light popcorn available. Sometimes I sprinkle a little cheese on them. Their is dehydrated chedder for popcorn and parmasean in the canister that I think tastes good on popcorn.
My kids rather like the idea of icing and sweet treats, but I don't buy them very often. There are cereal bars by SunBelt that have a bit of icing drizzled on them. They use real fruit and less sugar and corn syrup to make their filling. The bar itself is whole grain. They think its like a dessert. Sometimes I nook them for about 10-15 seconds.
I think probably every kid loves fruit snacks. Welches and Juicy Juice make fruit snacks that are 100% juice with gelatin. There are other brands that use agar-agar, guar gum, carrageenan, cellulose and xanthan that are equivalent to gelatin to set up consistency of fruit snacks, which are healthier snacks. Kids also love jello. Mix light whipped topping into jello for a mouse dessert.
My kids also like soft granola bars. Many of them have mini chocolate pieces, marshmallow, fruit pieces, honey or peanut butter in them for more flavor.
Another tip is that for some reason my kids thing a baggie of snacks is really cool. So... they may not want to sit down at the kitchen table and eat dinner or a snack, but they like baggies since they can carry them around as they play. Its also nice for road trips, keeping in a diaper bag, in the car or purse. I put several different snacks into baggies and they can go into the snack box and pick out what they want when they are hungry. They like the freedom instead of waiting on me to go make something or going through the guessing game of what they want to eat. Also, I can quickly pull baggies of fruit or cheese from the fridge, a baggie of pretzels from the snack box and fill sippy cups for a meal on the road... pretty nice when you are in a hurry!
My kids kind of like Lunchables as well. I tend to buy them the turkey or ham dishes. They are quick and easy for me to grab or the kids. They usually do not need to be cooked, and there are generic brands that are more cost effective.
I have also made spaghetti noodles, added mayo, seasoning and sometimes tuna for a quick meal. When I make a pasta dish, I make extra noodles. So... tonight we might have spaghetti and meatballs, and tomorrow afternoon we use the extra noodles for pasta salad.\
I have also found ham that is cubed and julienne in packages. My kids like the bite size pieces, and it's easy to nook and put on a plate. They don't seem to like the larger slices when I cook it in the oven.
I have bought dinner rolls or hawaiian rolls and turned them into mini sandwiches with lunch meat and cheese slices.
My kids like coney dogs. I make home made ones with canned chili sauce and hamburger and drizzle cheese over them. It kinds of turns a plain dog into something different.
I have also found that my kids like to eat off my plate all too often...lol, which of course I try to discourage. Sometimes I make them a quick dish and make myself an adult meal. I find that they will try new dishes, veggies and salads if I don't offer it to them first. They think they are getting something special by taking it off my plate. I make enough so that when they decide they like it I can give them their own plate. (A little reverse psychology helps!)