To prepare black beans:1. Heat oil in a large sauté pan over medium heat. Add onions and cook for 8 minutes. Add black beans, cumin, cilantro stems, salt, and broth; mix well. 

Cover and let cook for 15 minutes over medium heat, until most of the broth is absorbed. Mash beans with a potato masher.

To prepare rice:1. Prepare according to package instructions, substituting vegetable broth for water and adding chili powder. 

To roast peppers:1. Oil peppers and place them on a baking sheet. Broil peppers, turning often with tongs to char on all sides. Once they are charred, place peppers in a paper bag. Shake peppers in the bag to remove most of the char. Let peppers sit in the closed bag for 10 minutes. 

Remove peppers from the bag and dry with paper towels. Seed peppers and cut in strips. 

To assemble:1. Place tortillas on a plate, covered with a damp paper towel. Heat in the microwave for 20 seconds. Lay tortillas out on a work surface. 

Evenly distribute the black bean mixture among the tortillas, leaving 2 inches around the perimeter. Layer cheese, poblano strips, tomatoes, cilantro leaves, and rice on top of the beans. 

To make burritos: 

Fold in the sides to meet in the middle; then roll up the burrito, starting from the bottom. Cut burritos in half and place, seam-side down, on dinner plates. 

Serve with sour cream, guacamole, and salsa in small bowls on the side.

Recipe Courtesy of Quick & Kosher: Meals in Minutes by Jamie Geller (Feldheim 2010)