Sandwiches are premade and they basically put them on a plate for you. I however have never asked for a specially made one..
One tip I learned on our last trip - normally they come with this potato salad type stuff - you can ask for chips instead! According to the CM I talked to they're supposed to push the potato salad but if you are 'in the know' you can ask for and get the chips with no problem (we did it twice).
Do you mean the steamed vegetables & rice or noodles from the Asian section? If so, I've had that a few times. It's ranged from really good to fair. I'd still get it again!
I believe you are referring to the Asian side...so I will comment that way.
Last November we ate (we are a party of 5):
Mongolian Beef
Sweet & Sour Chicken
Spicey Cashew chicken
Sides ranged from stir fry veggies, noodles, rice and broccoli.
We all really enjoyed our meals and there was so much you could share one. We were on dining plan so didn't need to share. More than enough food for anyone.
For counter service it's a great option!
Edit: One of my daughter's had Jasmine rice and we did NOT care for that.