look online for simple meals. I like a lot of the dishes from "eating well"... Pay attention to the prep time. Spend part of a day off looking up a few recipes, and plan a shopping list. I find that it is easiest to cook meals if you use some of the same ingredients in a few different meals. Some meals you can make DOUBLE batches of... then store half to eat again later (or make double the sauce for a pasta dish, and freeze it--- then reheat that and simply cook fresh pasta, and you can have an easy quick dinner.
I also like to pre-mix some of the ingredients. Mix up the sauces for something you plan to make, and then store in the fridge
Also, use a slow cooker! the "fix it and forget it" cookbook has tons of recipes that you basically dump ingredients in, turn on the slow cooker... and then go to work. When you get home you have a delicious dinner.
Also, don't be afraid of new proteins, grains, and veggies. Game meat can be delicious (bison, elk, deer) and also meat we don't often have, like mutton, goose, etc... and don't forget fish! Grilled Salmon is just as easy as chicken... and breaded fish is simple and delicious... eat with brown rice and some simple steamed veggies (you could even chop the veggies in the morning and store them in a bag so all you need to do it cook and serve!