We did 5 nights at Aulani and like alohamom mentioned, made some cocktails in our room
I'll give you a breakdown of what we spent to give you a good idea. We had a kitchenette but we didn't use anything other than the fridge, really.
I did a lot of reviewing of food in my TR that alohamom linked to above. We budgeted around $125 per day, I think, for food. We weren't really trying to budget too much, but also didn't want to waste money. We also did a 2 week honeymoon so we were fine not going to breakfast/lunch every day. We spent about $100 at Target and got ham and cheese and buns for lunches, chips and pretzels, fresh fruit, bagels and cream cheese, coffee creamer, water and Diet Coke, and alcohol. I can't eat really heavy every day anyways, so it worked for us. We generally spent $100-125 per day. We maybe each bought one or two alcoholic drinks per day. Buying alcohol and keeping it in our room helped us cut down on that. Mixed drinks are fun but at $13-15 apiece, only one per day is plenty. You can buy a bottle of alcohol for that price!
We did Monkeypod for dinner. You can make a reservation on Open Table - which I suggest doing maybe a night or two before, as it gets busy. Definitely go during happy hour. We didn't and we wish we had! Their prices are a little expensive for what you get, IMO.
We felt as if we got to experience nicer places for dinner (Ama Ama, Roy's, Monkeypod) by cutting down on our breakfast/lunch expenses!
We did one lunch at Off the Hook, for 2 entrees, one non alcoholic drink, and a beer, plus tip it was about $40.
In contrast, it cost us ~$20 to eat at the snack shack by the pool another day (hot dog, chicken tenders and fries, and a Diet coke).
Here is roughly what I recall spending...
First night - Target - $100 on food for the room - Bagels, coffee creamer, ham, cheese, buns, chips, Cheetos, case of water, case of Diet Coke, bottle of vodka, bottle of wine, bottle of margarita (premixed), fresh fruit. I think we got a few random things as well.
Day 1
Breakfast @ Ulu Cafe - Malasadas and a breakfast sandwich, maybe $15-20
Lunch - In the room
Dinner - Ama Ama - Maybe $100ish?
Snacks - Roughly $10
= $130
Day 2
Breakfast & lunch in room
Spent ~$20 on random snacks @ Aloha Swap meet.. flavored macadamia nuts, banana bread, pepperoni roll - Snacked on these in the room during our trip.
Monkeypod Dinner - ~$75 for two entrees, an app, one Diet Coke, one beer.
= ~$100ish
Day 3
Breakfast in room
Lunch @ pool bar, $20
Snacks - Dole whip and ice cream bar, $10ish
Luau @ Paradise Cove ~$220ish
= $250 (Not sure I'd count the luau as food, considering it's mostly the show and experience you are paying for).
Day 4
Breakfast in room
Lunch @ Off the Hook, $40
Happy Hour cocktails @ Olelo Room, ~$20ish for one each
Dinner @ Roy's, ~$100-125
= $185
Day 5
Breakfast in room, stopped and got Leonard's Malasadas ~$10
Lunch @ Food Trucks on North Shore, plus Shave Ice from Matsumoto, ~$30
Dinner @ Pizza Corner, maybe ~$25?
I think we also had ice cream or a snack so maybe $10
= $75