Put split peas and bay leaf in a small saucepan with water to cover by 1 in. (1 1/2 in. for lentils). Bring to a boil over medium-high heat, then reduce heat to a simmer and cook uncovered until just tender, 25 to 35 minutes.
Meanwhile, in a large bowl, whisk together lime juice, curry powder, and 1 tsp. salt. Whisk in oil; stir in carrots.
Drain peas and stir into carrot mixture. Let cool at least 15 minutes, stirring occasionally, for carrots to soften a bit.
Stir in cilantro and green onions. Season to taste with about 1/4 tsp. each salt and pepper. Serve warm or cool.
*Find yellow split peas (not the same as Indian chana dal, which looks similar but is split chickpeas) and black beluga lentils at well-stocked grocery stores.
Make ahead: Up to 1 day, chilled.
Wine pairing: A bright, aromatic pink like Cypher 2014 "Pistil" Eclectic Rosé (Paso Robles; $24). The wine's spice makes the curry pop; its citrus meets lime in the salad. --Sara Schneider