Bettas aren't that big on vegetables so, reffering to the honey only, when it comes to 'leafy greens' things like lettuce, cucumber, zuchinni, peas - all the fish-friendly vegetables you generaly here about
Most will need to be blanched/boiled to make them softer and the peas need to be de-shelled. Some gouramies will like on type more than others. Also, if you don't mind doing so, you can buy some of the softer varieties of aquarium plant - honeys will usualy take bites out of those as well
As far as live foods go, both your gouramies and betta should pretty much devour brine shrimp, bloodworm and blackworm. Daphnia is also very good for them but some like it more than others. The frozen equivalents of these foods are equaly good but avoid freeze-dried alternatives as they are realy lacking in nutritional value and can cause bloat and constipation.
Besides all these foods and the flake/betta bites you're feeding already, you can also feed sinking foods and catfish pellets. My gouramies love them because they are high in protein. It's best not to give excessive amounts but a little once in a while is great and you should find all your fish take a bit (as long as they are willing to venture to the bottom for it
).
