Lentil Vegetable Burgers

Ingredients

• 1 small onion, chopped
• 1/2 c (95 g) short grain rice
• 1/2 c (39 g) dry lentils
• 3/4 tsp (3.75 mL) iodized salt
• 2 c (480 mL) water
• 1 stick medium celery, finely chopped
• 1 small carrot, chopped
• 2 tsp (10 mL) ground mustard
• 1 tsp (5 mL) garlic powder
• to taste vegetable oil spray