In 12-inch skillet, heat milk, hot water, butter, uncooked pasta and sauce mix (from skillet meal mix), carrots and tuna to boiling over high heat, stirring occasionally.
Reduce heat; cover and simmer 5 minutes, stirring occasionally.
Stir in peas and mushrooms.
Cover; simmer about 5 minutes or until vegetables are tender.
Remove from heat; let stand covered 5 minutes (sauce will thicken as it stands).
Notes / Tips / Wine Advice:
Time-saver: Tuna is often available in handy pouches. The pouches are really easy to use, as no draining is required.