1. Place all ingredients except tuna in a 12-cup microwave-safe casserole or simmer pot. Stir to mix. cover and microwave on High for 5 minutes, or until boiling. Stir once. 2. Microwave on Medium-low for 15 to 20 minutes, or until carrots are crisp-tender. Stir every 5 minutes. 3. Flake and add tuna to vegetable mixture. Refrigerate for up to 2 weeks, or freeze for up to 3 months. Serve with crackers or French bread.