Hi Chris-
Could building her a large enclosure where she does not have access to forage items be a possiblity? Letting her out only when you are spending time with her in the yard.
As for food suggestions, I’ve used a brand called Country Naturals with success for my senior Lab and have heard good things about Annamaet Lean and also Science Diet Perfect Weight. Only thing with Country Naturals is it is not available online.
I also like Susan’s suggestion of green beans, but would add those to an actual senior diet, which TOTW is not.
