We were just there in February. We had a great time. We did all winter stuff: Dog Sledding, Snow shoeing, etc. We will do this vacation again. My 13 year old son says Jackson was his favorite vacation and he is well traveled. The food was excellent. You need reservations for dinner. Even in February if you do not have reservations, you will not get in these places. Here were our favorites for dinner listed in order of must eat places:
Couloir-Beautiful. You ride the gondola up to the restaurant. The wine pairing dinner was great. Portions were not huge but that allowed us to eat all the courses. The wine chosen by the restaurant was perfect with each dish. The view from the restaurant was fantastic.
http://www.jacksonhole.com/couloir-restaurant.html
Wild Sage at the Rusty Parrot- Very small. Only 5 or 6 tables. The Elk was the best here.
Dining at the Wild Sage | Rusty Parrot Lodge | Jackson Hole Hotel and Resort
Snake River Grill-Excellent Drinks. Very Busy and mostly locals.
Snake River Grill
We also ate at the Silver Dollar Grill. It was good and the Smores dessert was my son's favorite thing.
Silver Dollar Grill - Jackson Hole Restaurants & Dining - The Wort Hotel Jackson, WY
Breakfast:
The Bunnery is quite good.
Jackson Hole Restaurants & Dining | All Natural Granola | The Bunnery
For Lunch:
Dolce- They have coffee and ice cream and sweets but the grilled cheese sandwiches are excellent.
dolce - jackson hole frozen yogurt, coffee and desserts
You will have a great time.