I cook meals only when I want to. DH is capable of getting something to eat when he's hungry. I usually don't eat a meal passed 3 pm and DH likes to eat about 6 pm. He likes to grill. He usually grills chicken, ribs, or steaks with grilled vegetables most every day. I toss a salad and we are done.
My DH is Diabetic, so I have to be diligent on what he eats.
Why is that your responsibility? Not being rude just curious. I would never think it was up to me to monitor what DH had to eat or not eat. That would be up to him to decide not me.