I hope you get this, I forget to check this sometimes.
I'm pretty much in the same boat. My husband is inactive. I have 3 kids, 13, 11 and 3. A long time ago I told myself that it was gonna be ME getting us to church, staying active and doing FHE. The kids really enjoy FHE, so I try really hard to have it as much as possible. It can be hard though when your the one having to do everything. Here are a few things that have worked for me.
-I started a FHE group in my ward. We swap lessons every couple of months. It helps to have a prepared lesson ready and waiting! I can even have my older kids read over the lesson and be in charge!
-Like you said if there's food he'll take part. I try to have an interesting dessert. Usually I ask him to help me bake some doughnuts, brownies and if we're having cookies we all help. Then he is eager to get the eating part!
-I also try to find a fun game to play. We usually have a lot of laughs here! Sounds like your a small family so even a quick board/card game would work.
-Here's one I haven't tried yet but plan to; during summer or break you can get together with some other families and have a combined lesson. Have each family in charge of games.
Well I hope this helps and good luck! I know how hard it is! Great job on the personal progress!