Preheat the oven to 450 degrees F. Prepare the cornbread batter according to the package directions (do not bake).
Combine the pork, beans and 3/4 cup water in a 10-inch cast-iron skillet. Spread the cornbread batter over the mixture and lightly press the peppers into the batter. Cook over medium-high heat until the pork mixture is bubbling around the sides, about 3 minutes.
Transfer to the oven and bake until the peppers are golden and the batter is cooked through, about 24 minutes. Sprinkle with the scallions and serve warm.
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