01 -
Bring a large pot of salted water to a boil. Add jumbo pasta shells and cook until al dente, following package instructions. Reserve 350 ml of the cooking water before draining the pasta.
02 -
Heat 2 tablespoons olive oil in a large skillet over high heat. Add chicken sausage and brown thoroughly for 5–8 minutes. Reduce heat to low, incorporate shallots, garlic, oregano, thyme, and a pinch of red pepper flakes. Sauté until shallots begin to caramelize, about 5 minutes.
03 -
Stir in tomato paste, cooking for 2 minutes. Add crushed San Marzano tomatoes, 250 ml reserved pasta water, salt, and black pepper. Simmer on low for 10–15 minutes until the sauce slightly thickens. Mix in chopped greens and cook until wilted. Adjust seasoning as needed.
04 -
Fold cooked pasta shells and 120 ml (½ cup) chopped basil into the sauce, tossing gently to coat. Add more reserved pasta water if sauce consistency requires thinning.
05 -
In a small bowl, combine the remaining 60 ml (¼ cup) olive oil, remaining 120 ml (½ cup) basil, lemon zest, lemon juice, and a pinch of salt. Mix well.
06 -
Spread whipped ricotta evenly on the bottom of individual serving bowls. Spoon pasta and sauce over the ricotta, then drizzle with basil lemon oil. Serve immediately.