Tomato Onion Flatbread

This golden, crispy flatbread offers a canvas of opportunities: broad strokes of tomato herb sauce, a splattering of caramelized onions, pops of color from peppery arugula and basil chiffonade, to final touches of cashew “cheese” and pink salt crystals. It’s a gluten and dairy-free dream meant to brighten the previously discouraging ritual of the classic pizza party.