vegetarian chili - my way

Ingredients

• 1 medium zucchini, cut into 1/2-inch slices
• 1 medium green bell pepper, chopped
• 1 medium onion, chopped
• 4 cloves garlic, minced
• 2 tablespoons olive oil
• 2 cans (14-1/2 oz) diced tomatoes, undrained
• 1 can (15-oz) chili beans, drained and rinsed
• 1 can (15-oz) pinto beans, drained and rinsed
• 1 can (15.25-oz) whole kernel corn, drained
• 1 cup instant brown rice, uncooked
• 4 tablespoons chili powder
• 1 teaspoon cilantro, dried
• 1 teaspoon oregano, dried
• 3 cups water
• - cheddar cheese, shredded, (optional)