One Pot Vegetarian Chili Mac

Name: One Pot Vegetarian Chili Mac
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American, TexMex
Ingredients: 1 tablespoon olive oil; 8 ounces white mushrooms, finely chopped; 1 medium white onion, finely chopped; 1/2 teaspoon salt; 3 cloves garlic, minced; 1 tablespoon chili powder; 1 tablespoon cumin; 1 teaspoon dry oregano; 1/4 teaspoon black pepper; 1 can (15 ounces) crushed tomatoes; 1 can (8 ounces) tomato sauce; 4 cups vegetable broth; 10 ounces dry elbow pasta; 2 cans (15 ounces) kidney beans, drained and rinsed; 1 cup shredded cheddar cheese; chopped green onions, for topping; chopped fresh cilantro, for topping; sour cream, for topping (optional)