Heat oil in large nonstick saucepan over medium-high heat until hot. Add garlic. Cook and stir 3 minutes. Add mushrooms, onion and bell pepper. Cook 5 minutes, stirring occasionally.
Add chili powder, cumin, red pepper, if desired, and oregano. Cook and stir 1 minute. Add tomatoes and beans. Reduce heat to medium-low. Simmer 15 minutes, stirring occasionally.
Serve with sour cream and cheese.
This recipe yields 4 servings.
Exchanges Per Serving: 1 Starch, 3 Vegetable, 1 Fat.
Nutrition Facts: Calories 189; Calories from Fat 24%; Total Fat 5g; Saturated Fat 1g; Protein 10g; Carbohydrates 29g; Cholesterol 3mg; Sodium 428mg; Dietary Fiber 7g.