Sinigang na Baka

INGREDIENTS

• 2 tablespoons canola oil
• 1 large onion, chopped
• 2 cloves garlic, chopped
• 1 pound beef stew meat, cut into 1 inch cubes
• 1 quart water
• 2 large tomatoes, diced
• 1/2 pound fresh green beans, rinsed and trimmed
• 1/2 medium head bok choy, cut into 1 1/2 inch strips
• 1 head fresh broccoli, cut into bite size pieces
• 1 (1.41 ounce) package tamarind soup base