Preheat oven to 350°F.

Place pork in shallow roasting pan. Sprinkle with 2 tablespoons herb blend; season with salt and pepper. Roast until temperature towards interior of crown reaches 145°F, about 2 1/4 hours.

While pork is roasting, make dressing: In large skillet over medium heat, cook sausage, stirring occasionally, until browned and cooked through, 8 to 10 minutes. Use slotted spoon to transfer sausage to large bowl.

Add 2 tablespoons butter to skillet; melt over medium heat. Add bell pepper and onion. Cook, until very tender, 10 to 12 minutes. Transfer mixture to bowl with sausage. Add bread, cheese and remaining 2 tablespoons herb blend to bowl. Add 1 1/2 cups broth, stirring to evenly moisten. Season with salt and pepper. Spoon mixture into buttered 2 1/2-quart casserole dish. Cut 2 tablespoons remaining butter into pea-sized pieces; dot them over the top.

About 30 minutes before pork is done, cover dressing with foil and bake 30 minutes.

When pork is done, transfer to cutting board; rest 20 minutes. Remove foil from dressing; continue cooking until top is crisp and golden, about 20 minutes.

Meanwhile, drain roasting pan and discard liquids; place pan on stovetop over medium-high heat. Add wine and remaining 3 cups broth. Bring to boil; cook, scraping up browned bits, until liquid reduces to 2 cups, about 12 minutes. Reduce to simmer; add remaining 4 tablespoons butter, stirring until butter melts. Whisk in cornstarch mixture; cook until sauce thickens, just a few seconds. Remove from heat; whisk until smooth. Strain if you like; season with salt and pepper.

Slice roast. Serve with dressing and pan sauce.