Half a corned beef sandwich on the left; half a...

Half a corned beef sandwich on the left; half a pastrami sandwich on the right. Boomy's New York Deli in July 2014. Credit: Newsday / Joan Reminick

The high point of a recent lunch at Boomy’s New York Deli in Plainview was its pastrami sandwich ($9.99), starring properly peppery and fat-frilled meat.

But the deli, no longer kosher, came up short in several other respects: Flavorless matzo ball soup. A wincingly salty tongue sandwich ($11.49) that tasted mainly of cloves. (Cloves?) And fries ($4.29) previously frozen and characterless.

On the brighter side: A pretty good corned beef sandwich ($9.99). And moist loose-textured brisket ($9.99) on rye.

Boomy's New York Deli is at 437 S. Oyster Bay Rd. Plainview, 516-433-6565.

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