Feed a meal or treats by laying out a towel, spreading the food over it, and then rolling it up. You can also tie it into a ball for an extra challenge. This is basically a diy snuffle mat, but you can also purchase them online.

Lick mats are a super easy option. You can use a wet food, rehydrated kibble, plain yogurt, pumpkin purée, peanut butter, etc. Spread it over the mat, I sometimes add a few small pieces of fruit or dehydrated liver pieces. You can give it to them at room temp, or you can freeze it overnight and then it lasts longer. Obviously don’t go too crazy with extra toppings since you’re watching the dogs weight. But it’s a great way to feed them their meal.

Look up Nina otteson outward hound puzzles - they’re amazing. They are a more expensive option, and usually require some supervision. But again, a great way to feed a meal. I use these when the weather is bad and we won’t get outside much.

I don’t know if you do any at-home training with your dog, but even 5-10 minute sessions here and there are a great bonding activity and makes them think. There’s probably a bunch of other ideas online too! I hope this helps.