2¼ cups vegetable broth, divided
¾ cup brown rice, rinsed
6 cloves garlic, minced, divided
1 teaspoon kosher salt
¼ cup minced fresh cilantro
1 tablespoon vegetable oil
1 onion, finely chopped
3 tablespoons tomato paste
1 teaspoon minced chipotle chile in adobo sauce
1 tablespoon ground cumin
1 teaspoon dried oregano
1 pound Swiss chard, stemmed and sliced into 1-inch wide strips
1 15-ounce can pinto beans, rinsed, divided
1 tablespoon lime juice
6 10-inch flour tortillas
10 ounces Monterey jack cheese, shredded (about 2½ cups), divided
To freeze the cooked burritos, place on a sheet pan lined with parchment and freeze until solid. Store in an airtight container, and reheat in the microwave or oven.
Combine 1¼ cups of broth, rice, half the garlic and ½ teaspoon of salt in a small saucepan. Place over medium-high heat and bring to a boil. Cover, reduce heat to low and cook until the rice is tender and broth has been absorbed, about 45 minutes. Remove from heat and allow to sit, covered, for 10 minutes. Add the cilantro and fluff with a fork. Cover to keep warm.
Meanwhile, heat the oil in a Dutch oven set over medium heat. Add the onion and cook until just beginning to brown, about 5 minutes. Stir in the tomato paste, chipotle, cumin, oregano, remaining garlic and remaining ½ teaspoon of salt. Cook until fragrant, about 1 minute. Add the chard and ½ cup of the broth. Cover and simmer until the chard is tender, about 15 minutes.
Combine half the beans with the remaining ½ cup of broth in a medium bowl. Using a fork or potato masher, coarsely mash the beans, then stir into the pot. Cook, stirring constantly, until the liquid is nearly evaporated, about 3 minutes. Off the heat, stir in the lime juice and remaining whole beans. Cover to keep warm.
Adjust an oven rack to 6 inches underneath the broiler element and heat the broiler. Wrap tortillas in a damp dish towel and microwave until warm and pliable, about 1 minute. Lay warm tortillas on a work surface. Mound warm rice, chard-bean mixture and 1½ cups of the cheese in the center of the tortillas, close to the bottom edge. Working with 1 tortilla at a time, fold the sides of the tortilla over the filling, then fold up the bottom of the tortilla, pulling back on it firmly to tightly wrap around the filling and into a burrito.
Place the burritos seam side down on a foil-lined baking sheet. Sprinkle the remaining 1 cup of cheese over the top. Broil until the cheese is melted and starting to brown, 3-5 minutes. Serve warm.