I use a lot of ground beef, venison and turkey (or veggie substitutes for ground meat). They're generally quick and easy to cook so they work for me. Here are some ideas:
Chili - a great choice if you're cooking for anyone who doesn't like the taste of venison, the spices hide it a bit!
Bolognese sauce (eat over veggies instead of pasta if you want to keep carbs low)
Salisbury steak (good with a healthy mushroom-based gravy)
Lasagna - I've seen recipes that use slices of zucchini or eggplant instead of noodles!
Shepherd's pie (go light on the potatoes, include lots of veggies)