Pack up a perfect picnic with the help of Sweet Cheeks Meats, localed in Jackson, Wyoming, an hour south of Yellowstone’s South Entrance. The only hard part will be waiting until you’re in Yellowstone to eat it. Sweet Cheeks, which sources its meat from local producers like Lockhart Cattle Co., Mead Ranch, and Jackson Hole Hereford Ranch, makes gourmet breakfast and lunch sandwiches, and a selection of prepared food. There are standards like country paté, meat loaf, and duck confit (which they call a “meat lollipop”), but the daily breakfast and lunch sandwiches are routinely switched up: One day, it’s pulled pork and a fried egg on a cheddar-scallion buttermilk biscuit, the next it’s house-smoked ham, egg, and white cheddar on a brioche bun.