Here is the LAX-LIM-SCL menu - which might not be at all relevant to your routing.
From two weeks ago, a quite unremarkable menu:
Los Angeles – Lima
Smoked salmon and dilled cream cheese terrine
OR
Fresh carrot and saffron cream soup
OR
Fresh seasonal greens served with your choice of dressing
Grilled filet of beef
OR
Pan seared salmon
OR
Pasta
Cheeses
Warm fudge brownie
Before arrival in Lima:
Swiss cheese and ham sandwich
Muffin
Fruit
Lima to Santiago
Fruit
Yoghurt
Cereal
Cheese omelette
OR
Ham and cheese sandwich