Chickpea Quinoa Power Burger - Vegan Heaven

Ingredients

• 1/2 cup quinoa
• 1 can (15 oz) chickpeas
• 1 flax egg ((1 1/2 tablespoons ground flax seeds + 3 tablespoons water, soaked for 5 minutes))
• 2 stalks celery, cut into small pieces
• 1/2 red bell pepper, cut into small pieces
• 5 medium mushrooms, cut into small pieces
• 1/2 medium carrot, cut into small pieces
• 1 red onion, chopped
• 2 cloves of garlic, minced
• 1 teaspoon oregano
• 1 teaspoon basil
• 1 teaspoon paprika powder
• 1/2 teaspoon thyme
• 1/2 teaspoon liquid smoke
• 1/2 teaspoon mustard
• 2 teaspoons guar gum or carob gum
• 1/2 teaspoon salt
• black pepper, to taste
• red pepper flakes, to taste (optional)
• 4 whole wheat buns
• 2 tomatoes, cut into slices
• 2 avocado, cut into slices
• lettuce
• BBQ-sauce
• mustard