Cook the grain blend as the label directs; set aside.
Heat the coconut oil in a large nonstick skillet over medium-high heat. Add the shrimp and cook until they just turn pink, about 1 minute per side; transfer to a plate and set aside. Add the jalapeno, ginger and 1/2 teaspoon salt to the skillet and cook until the jalapeno softens slightly, about 1 minute. Add the broccolini and scallions and cook, stirring occasionally, until slightly softened, 2 minutes.
Add the coconut water to the skillet and cook, stirring, until the broccolini is just tender, about 2 minutes. Add the peanut butter and cook, stirring, until the sauce thickens slightly, about 1 minute.
Return the shrimp to the skillet; cook until opaque and the sauce thickens, about 2 more minutes. Stir in the cilantro and lime juice. Serve over the grains.