3 topped cauliflower gratin Recipes

cauliflower florets (about 1 lb), trimmed quartered brussels sprouts (about 1 3/4 lb), all-purpose flour (about 1/4 cup), low-fat milk, half-and-half, salt, freshly ground black pepper, freshly ground nutmeg, center-cut bacon, chopped, chopped vidalia or other sweet onion, garlic cloves, minced, grated parmigiano-reggiano cheese, panko (japanese breadcrumbs)

brussels sprouts, trimmed , quartered lengthwise through core, head of cauliflower, trimmed, cut into small florets, heavy whipping cream, chopped shallots, chopped fresh sage, olive oil, plain dry breadcrumbs, pine nuts, lightly toasted, chopped fresh italian parsley, grated parmesan cheese, divided