For lunch, we decided to take two slices (around 150g each) of the gammon, and fry this with egg and mushrooms. With a couple of slices of toast our lunch came to 450-500 calories.
The rest of the gammon is going into the pressure cooker with a bottle of coca-cola. It should take just 30-40 minutes to cook. I've never cooked it this way before, so it will be interesting to see how it turns out. Hoping the resulting ham will be moist and tender!