Nutrition Facts. There are 380 calories in 1 burrito (6.7 oz) of Taco Bell Bean Burrito. You'd need to walk 106 minutes to burn 380 calories. Show full nutrition information. Taco Bell Bean Burrito made with hearty beans, real cheddar cheese, tangy red sauce and diced onions. Visit CalorieKing to see calorie count and nutrient data for all portion sizes. Serving Size: 1 serving. Calories in Taco Bell Bean Burrito, Fresco Style. Most of those calories come from carbohydrates (62%). Amount Per Serving. Taco Bell Bean Burrito, Fresco Style (1 serving) Calories: 350, Fat: 8g, Carbs: 56g, Protein: 13g. There are 350 calories in 1 burrito of Taco Bell Bean Burrito. Taco Bell Bean Burrito Calories. Calorie breakdown: 23% fat, 62% carbs, 15% protein. There are 350 calories in a Bean Burrito from Taco Bell.