2 16-ounce cans spicy vegetarian refried beans
3/4 cup vegetable stock
2 teaspoons hot sauce, such as Frank’s Red Hot
2 teaspoons ground cumin
1 small red onion, finely chopped, divided
3 jalapeño chiles, seeded and finely chopped, divided
Juice of 1 lemon
1 clove garlic, grated
2 ripe avocados, pitted and peeled
3 plum tomatoes, seeded and chopped
1/3 cup cilantro, finely chopped
4 large flour tortillas
3/4 pound pepper jack cheese, shredded
1 romaine heart, chopped
1 cup sour cream
1 cup pimiento-stuffed green olives, chopped
In a medium saucepan, heat the beans with the stock, hot sauce and cumin over medium-low, stirring until warm, about 10 minutes.
In a medium bowl, combine half the onion and jalapeños with the lemon juice and garlic. Season with salt; let stand 10 minutes. Mash in the avocados to make the guacamole.
In a small bowl, toss the remaining onion and jalapeños with the tomatoes and cilantro to make the salsa; season with salt.
Heat a large skillet over medium-high. Add one tortilla and cook until it starts to blister, about 1 minute per side. Repeat with remaining tortillas. Place one tortilla on a work surface. Spread one-quarter of the cheese, some romaine, guacamole, salsa, sour cream, and olives. Roll up, burrito-style. Repeat with the remaining tortillas and fillings. Cut burritos in half; divide among plates.