Bring a large pot of salted water to a boil. Add the pasta and cook until al dente, about 8 minutes for dry pasta. Drain in a colander. Return to the pot and toss with 1 tablespoon of the oil. Cover and keep warm while finishing the recipe.

While the pasta is cooking, in a large saute pan, cook the sausage over medium-high heat until browned and cooked through, about 4 to 5 minutes. Remove with a slotted spoon and drain on paper towels. Pour off the fat from the pan.

Heat the oil in the pan over medium-high heat. Add the bell peppers and shallots and cook, stirring, until just soft, about 3 minutes. Add the garlic, green onions, and 1 tablespoon of the Essence, and cook, stirring, for 1 minute. Deglaze with white wine and cook until almost completely reduced. Add the shrimp and sprinkle with the remaining 2 teaspoons of the Essence. Cook, stirring, until the shrimp are just pink, about 1 minute. Add the lemon juice and cream and bring to a boil. Cook, stirring until starting to thicken, about 1 minute. Add the cooked pasta, cheese, and parsley, and toss to combine. Cook until the pasta is heated through and well coated, about 1 minute. Remove from the heat and adjust the seasoning, to taste.

Divide among 4 pasta bowls, garnish with additional chopped green onions, and serve.