What is your secret to having a diverse evening meal plan?

I know at the moment its hard because we are living at my parents and they dont have as varied tastes as we do, but i am really struggling each night.

I am not over cooking. I enjoy cooking. I am just over thinking of WHAT to cook!

Also, we parents have this idea that each meal has to have carb, meat and at least 3 varieties of vegetables. When i was living at home single it never bothered me, but now that DH and i have a simplified style to evening meals (1 or 2 dishes) i am over coming up with different things and ways to cook things.

Suggestions? Help?