Make this hearty pleasing dinner in one dish!

- 1 medium onion finely diced
- 1 pound sausage, casing removed and crumbled
- 3 garlic cloves, minced
- 1 pound russet potatoes diced
- ½ cup finely diced carrots
- 5 cups chicken stock
- ¼ cup heavy cream
- ¼ teaspoon red pepper flakes
- ½ teaspoon dried oregano
- ½ tablespoon dried parsley
- salt and pepper, to taste
- scallions, to garnish