I would suggest trying recipes with lentils and chickpeas. Try different greens and squashes.
There are tons of cooking blogs out there with great vegetarian recipes. We still eat meat 3-4x/week, including fish, but on meat days I will cook two vegetable sides - one frozen and one fresh. You are completely right -- you get so many more nutrients when you have meat (and starches) be a less pronounced part of your diet.