Heat grill to medium. Brush a large rimless baking sheet (or an inverted rimmed sheet) with 1 tablespoon oil. On a lightly floured work surface, roll and stretch dough to two 8-inch ovals or rounds. Transfer to prepared sheet. Brush tops with 1 tablespoon oil.
Transfer dough to grill. Cook, without turning over, until undersides are firm and begin to char, 2 to 3 minutes. Using tongs and a large spatula, place crusts on baking sheet, grilled side up.
Scatter crusts with tomatoes, scallion whites, and cheese; season with salt and pepper, and slide back onto grill. Cook, rotating occasionally, until cooked through and cheese begins to melt, 3 to 5 minutes. Transfer to a cutting board.
In a medium bowl, combine spinach, avocado, scallion greens, vinegar, and remaining tablespoon oil; season with salt and pepper, and toss to combine. Pile mixture onto pizzas; halve, and serve.
Flipping a large round of dough on a hot grill can be tricky, so we made two smaller pieces and turned them over with tongs and a spatula -- no sweat.
I love this pizza, and could have never made it without tragedy, until this recipe. Thank you so much. Store bought dough, because it is great food fast and if you have ever made real pizza dough, it takes a long time.
store bought pizza dough??? Really Martha? Really?
This is a great recipe. I do have to make it with mozzarella cheese because my husband doesn't love goat cheese, but it is tasty to me both ways. Easy and yummy.