Bring a large saucepan three-fourths full of water to a rolling boil. Add the 1 Tbs. salt and the asparagus and cook until nearly tender, 1 to 2 minutes. Drain and rinse under cold running water. Set aside.
In a saucepan over medium heat, bring the broth just to a simmer and then keep it just below a simmer over low heat.
In a large, heavy saucepan over medium heat, warm the olive oil. Add the leek and sauté until softened, 2 to 3 minutes. Add the rice and stir until each grain is well coated with oil and translucent with a white dot in the center, about 3 minutes. Add the wine and stir until it is completely absorbed.
Add the warm broth a ladleful at a time, stirring frequently after each addition. Wait until the broth is almost completely absorbed (but the rice is never dry on top) before adding the next ladleful. Reserve 1/4 cup broth to add at the end.
When the rice is almost tender to the bite but slightly firm in the center and looks creamy, after about 18 minutes, add the asparagus, peas and a ladleful of broth. Cook, stirring occasionally, until the asparagus and peas are heated through and just tender and the rice is al dente, 2 to 3 minutes more. You may find that you did not need all of the broth or that you need more. If more liquid is required, use hot water.
Remove the risotto from the heat and stir in the butter, the cheese and the reserved 1/4 cup broth. Season with salt and pepper. Spoon onto warmed plates and serve immediately with a glass of Amista Sparkling Blanc de Blanc.
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