One-Pot Beef Stroganoff

Ingredients

• 1 tablespoon olive oil
• 1 cup onion, finely chopped
• 2 garlic cloves, minced
• 1/2 lb beef sirloin steak, thinly sliced
• 2 tablespoons flour
• 1 (14 1/2 ounce) can beef broth
• 2 tablespoons Dijon mustard
• 2 teaspoons paprika
• 1 medium green pepper, sliced
• 1 cup water
• 1 (8 ounce) package mushrooms, sliced
• 2 cups egg noodles
• 1/4 cup sour cream
• pepper, to taste