DH is on a diet

[Warpy]

4. You can start him off, but you really need to involve him in preparing this stuff

because it sounds like a hell of a lot of prep work to me, even with a food processor and other kitchen gear. Getting into shape is really his job, not yours, although you can help him in the beginning. While he might want to push it all off on you while he feels so rotten, it's really not until he's got some of his own skin in the game that he's going to develop any enthusiasm about it.

Otherwise, he's just going to slip back into bad habits.

ETA: I'll also suggest lettuce roll ups, lettuce leaves filled with tuna, salmon, or chicken salad, the barest hint of may on the lettuce leaf, skewered with a toothpick. It's easy finger food when it's too hot to cook.