What good frozen veggies and fruit for my fish

[Miss Bad Wolf 23]

I am thinking of getting into feeding my goldies frozen veggies and fruit.  I know they can eat peas.  I am thinking of trying carrots, broccoli and green beans.  I can get the frozen kind at the local grocery store.  How about any frozen fruit that would be good for my goldies?

I thought of trying some banana pieces but bananas go bad so fast.  Wonder if I can only buy one banana instead of a bunch of bananas?

Right now looking up YouTube videos on food for goldfish.  Would frozen spinach be great for goldfish?

[koko 14,316]

Spinach is great for them. But broccoli gives them gas. Bananas are high in sugar so that wouldn't be good.