In many quarters "spumoni" refers to layered, molded ice cream in multiple flavors, sometimes with a seam of fruit and nuts; at L&B it's apparently ice cream, period. (They're hardly alone on this, but I can't quickly find an online source that discusses the more casual configuration of the dessert. Can an Eating In Translation reader point me the right way?) Most of the options at L&B feature a single flavor; as it happens, there's also a "rainbow" version, in a creamy blend of vanilla, chocolate, and pistachio (small, $2).
Despite its name, though, L&B Spumoni Gardens wins even more attention for its Sicilian pie (slice; $2.25). It's painted with a tomato sauce that's absolutely amazing if you catch it fresh from the oven, but act fast; the fellow next to me promptly claimed a half-sheet to go.
L&B Spumoni Gardens
2725 86th St., Gravesend, Brooklyn