Momi ~ Please advise on preparing beef luau using spinach rather than luau leaves. Also we need to feed 50-100 people so what is the amount to prepare?

I don't think I've ever had beef luau (it's always been chicken or squid luau), but I suppose chunks of beef would also work too.

Take a look at the following recipe for chicken/squid luau. It serves about 6-8 people.

If you're using beef, I think the most economical cut would be stew meat (top round cut in smallish chunks. To serve 50-100 people I would guess you'd probably need about 6-8 oz. of beef/person. Then to make the beef tender, I would probably simmer the beef in some water for at least 1/2 hour before using it to prepare the luau (drain thoroughly).

For spinach, if 2 boxes of thawed (but not cooked) frozen spinach = about a lb, you would need probably at least 20 boxes of frozen spinach.

The amount of coconut milk (use canned coconut milk or coconut cream, whichever is the cheapest) is kinda variable; it depends on how "wet" you want your luau to be (you might need at least 20 cans of coconut milk or coconut cream).

You don't need the water stated in the recipe because that's for cooking fresh taro leaves (but do squeeze out all the moisture from the thawed spinach so it doesn't dilute the coconut milk before you add it to the beef). Then add salt to taste.

That's about as close to giving you a recipe as I can come, but I hope it helps. Obviously the more dishes you have on the table for people to pick from, the less of this beef luau you will need.