Everyone has given you great advice. Personally, I have found that it's easier to cook now, when home with the baby, then when I go back to work! that's when we turn to grilling and quick, easy meals (frozen pizza, etc.).
Casseroles are perfect right now - especially if you live in the frigid North! I just took boneless pork chops last night, coated them with panko crumbs / parm mix, and threw them in the oven to bake. For the sides, stove top apple stuffing was done in 10 minutes on the stove and a bag of frozen veggies in the mocrowave was done in 5 minutes.
Look into getting a carrier or sling if you think your baby is very needy and wants to be held - that will free up your hands!