In a large skillet, heat olive oil and butter. Add mushrooms and cook for 3-5 minutes over medium heat, until they start browning. Add garlic and continue cooking until mushrooms are fully browned.
Stir in carrots, green onions, rosemary, salt and pepper. Add stock, bring to a boil and simmer for about 5-10 minutes, until the sauce is reduced by about half. Serve over hot pasta. Garnish with Parmesan cheese if desired.
Notes
Do you make vegetarian or meat free meals on a regular basis? What are some of your family’s favorites?