Memorial Day is almost here, which for a lot of us means camping, grilling, and backyard parties. And what's great about barbecues are all the side dishes! While classic barbecue side dishes like potato salad and macaroni cheese are favorites for many of us, they don't always work for those following a vegan diet. If you're planning a barbecue this weekend, here are 20 side dishes that will have your vegan friends coming back for seconds.