If you are looking for a recipe for vegetarian burgers, these veggie sliders are next level fancy. From How Sweet It Is, the black bean butternut sliders and chipotle ketchup also have a fun autumnal twist to them for those who want to enjoy cheeseburgers even when it's too cold to break out the barbecue on a regular basis.
Blogger Jessica notes you can substitute sweet potato for the butternut squash in the event you are over squash, don't like it or simply don't have it on hand. The miniature sized vegetarian burgers are also topped with havarti cheese because yum. She added some cilantro and brushed the buns with melted butter and garlic salt as well.