Mexican Beans And Barley

• 1 onion
• 1/2 am bits-o-barley (raw)
• 1/2 monterey jack (shredded)
• 600 ml water
• 300 gr tomatoes (canned)
• 260 gr am beans of choice (cooked)
• 120 ml yogurt (plain)
• 30 ml am unrefined vegetable oil
• 18 gr green chilis (chopped)
• 3 gr chili powder