Bring a large pot of water to a boil for the rigatoni.
Preheat broiler and place a rack in the upper third of oven. Arrange the tomatoes on a baking sheet and toss with a little olive oil. Place under the broiler and char until they burst.
Heat a large, deep skillet over medium-high heat, add olive oil, 2 turns of the pan. Add sausage, brown and crumble. Add shallots and garlic, and season with salt and pepper. Stir shallots and garlic into sausage for 2-3 minutes then deglaze with sherry or sweet vermouth. Add kale to pan and wilt into sausage. Add charred tomatoes to sauce.
Cook pasta in salted water to a minute shy of cooking time, reserving a mug of starchy cooking water. Drain rigatoni and toss with sauce and starchy water for a full minute.
Plate pasta in shallow bowls topped with a fat mound of ricotta, some thyme, a drizzle of EVOO, a sprinkle of salt and pepper. Shred or shave pecorino over the dish and serve.