Grilled-to-order burgers, ice cream treats, and hot dogs will be the affordable ($5 or less) fare at the new summer-only Garden Grill by Wolfgang Puck; the mini-eatery will set up adjacent to the Walker Art Center’s Vineland Place terrace. The grill will be open Thursday evenings and weekend afternoons throughout the summer. “Get your summer on at the Walker,” suggests the press release, tentatively trying out the newly discovered “get your [X] on” slang concept.