medium onion, chopped
kosher salt and black pepper
14.5-ounce can diced fire-roasted tomatoes with green chilies
biscuit mix, plus required ingredients
Cheddar, grated (1 cup)
assorted fresh tomatoes, cut into bite-size pieces
small shallot, thinly sliced
chopped fresh flat-leaf parsley
red wine vinegar
- Heat oven to 400° F. Heat 2 tablespoons of the oil in a medium ovenproof skillet over medium-high heat. Add the onion and ½ teaspoon salt and cook, stirring frequently, until beginning to brown, 6 to 7 minutes. Add the beef and cook, breaking it up with a spoon, until no longer pink, 6 to 8 minutes. Add the canned tomatoes (with their juices) and cook until slightly thickened, 2 to 3 minutes more.
- Prepare the biscuit mix according to the package directions. Drop 8 mounds of the dough onto the meat mixture in the skillet and sprinkle with the Cheddar. Bake until the biscuits are golden and cooked through, 18 to 22 minutes.
- Meanwhile, in a medium bowl, combine the fresh tomatoes, shallot, parsley, vinegar, the remaining 2 tablespoons of oil, ½ teaspoon salt, and ¼ teaspoon pepper. Serve with the cheeseburger pie.