I love the crockpot idea. Also, who will be doing the grocery shopping? Or as someone asked, are you planning to have 8 weeks worth of meals tucked into a freezer somewhere?
Buying a whole chicken and roasting it with some veggies would be easy. Same for a pot roast.
If you make your own pizzas, you can make and freeze.
Are any of the kids old enough to help out? You can maybe keep ideas going and have one of them flesh out the full meal.
Hope the surgery goes well.
Thoreau said, 'A man is rich in proportion to the things he can leave alone.'