Here are some things that work well for us:
Pasta and marinara sauce (jars of sauce are really easy) with parmesan sauce. Try using multi-grain, whole wheat, or veggie pasta - my girls love the different textures.
Definitely try yogurt -it's a staple in our house - but make sure to check the ingredients. Neither of my kids would eat anything that had corn starch, but they love yogurt like Mountain High, Brown Cow, and Dannon Naturals (check organic or natural foods sections for the best types in your area)
If you're on the go a lot, try Stretch Island Fruit Leather. There's no extra sugar or fillers, it's just pure fruit leather. You have to be careful about mess (they get pretty sticky), but they taste great.
Other ideas: omelets, hot cereals (Oatmeal, corn meal, cream of wheat, etc), chicken or turkey (no skin, cut into small pieces), grilled cheese sandwiches, just about any soup (clam chowder goes over really well here), fresh fruit, steamed veggies, crackers (look for whole-grains), etc.
My girls eat pretty much the same things my husband and I have, we just have to keep an eye on how big the pieces get. And unless your kids have allergies or trouble digesting certain foods, don't worry about serving "bland" foods. If kids are used to a variety of flavors, they're not nearly so picky later on.