"What else" and "and"

Keira: What are we having for dinner?
Keira's Mummy: Chicken and mushroom.
K: What else?
KM: Pork ribs.
K: What else?
KM: Rice and vegetables.
K: What else?
KM: Mango jelly.
K: What else?
KM: That's all.

Liem: What are we having for dinner?
Mummy: Chicken.
L: And?
M: Rice.
L: And?
M: Veggies.
L: And?
M: That's all.