Prepare polenta according to package instructions.
Heat a drizzle of olive oil in a sauté pan. When the pan is hot, add the onions until they begin to color, and then add the beet greens until they wilt. Remove from the pan and set aside.
Add sausage to the pan. Cook until well browned, then return the onion and beet green mixture to the pan to warm through. Season to taste with salt and pepper and serve over a scoop of polenta. Top with Grana Padano.
Recipe by The Taste Edit at https://thetasteedit.com/polenta-sausage-beet-greens/