When the sausage and vegetables finish cooking, slice the sausage on a bias and serve over the polenta mixture with the vegetables alongside.
Heat a grill to medium-high heat.
In a small bowl combine 1/4 cup of the EVOO and rosemary sprigs. Brush over the eggplant and radicchio. Grill sausage, eggplant and radicchio until cooked through, about 10-12 minutes.
While sausage and vegetables are cooking, bring the chicken stock and milk to a boil in a saucepan. Once the liquid comes to a boil, add polenta and stir with a wooden spoon until it all comes together. Stir in the pumpkin puree, then add the butter and honey. Finish with rosemary, salt and plenty of black pepper.