Mix all ingredients except muffins and cheese. Spread tuna mixture over cut side of each muffin half. Arrange on microwave rack or 10 inch plate. Microwave, uncovered, on high 2-3 minutes or until mixture is hot. Top with cheese. Microwave, uncovered 30-60 seconds or until cheese begins to melt. Makes 6 open-face sandwiches.
By Robin from Washington, IA
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