Easy Vegetable Rice

WHAT YOU'LL NEED

• 2 Tbsp. vegetable oil
• 2 cups sliced mushrooms
• 1 small onion, chopped
• 1 medium red bell pepper, chopped
• 1 cup uncooked regular rice
• 2 cups water
• 1 tub Knorr® Homestyle Stock - Beef
• 1 cup frozen green peas