There's nothing like the smell of sausages and chiles sizzling over a campfire to get appetites going.
Grill chiles and tomatoes directly on grates set over a campfire or on a medium-high grill, turning, until charred and softened, about 10 minutes. Transfer to a plate. Reserve tomatoes and 1 jalapeno for relish. (Reserve 2 jalapenos for a spicier relish.)
Grill sausages directly on grates, turning, until cooked through, 12 to 15 minutes.
Meanwhile, chop charred tomatoes and reserved jalapeno; transfer to a bowl. Stir in garlic, vinegar, and sugar. Season with salt and pepper. Serve chiles and sausages with charred tomato relish, sandwiched with
Serve chiles and sausages with charred tomato relish, sandwiched with skillet breads.