Refried Beans

Ingredients

• 4 tablespoons oil
• 2 onions, finely diced
• 3 garlic cloves, minced
• 1 medium carrot, grated
• 2 stalks celery, finely diced
• 12 zucchini, grated
• 5 cups pinto beans, cooked
• 1 12 cups liquid (bean broth) or 1 12 cups water
• 2 12 teaspoons cumin
• 2 12 teaspoons Mexican chili powder
• 1 teaspoon chipotle chili sauce
• 12-1 teaspoon salt, to taste
• 2 teaspoons vinegar, to taste or 2 teaspoons lime juice
• cheese, grated (optional)