Saute sausage in skillet; use a hamburger chopper to break the meat up into small pieces.
Drain any grease; transfer cooked sausage to crockpot.
Remove skillet from burner; clean out skillet with paper towels.
Add one tablespoon of butter to skillet and heat over low to medium heat.
Add bell peppers, onions and mushrooms and saute about 5 minutes.
Transfer vegetables to crockpot.
Meanwhile in another skillet, melt remaining tablespoon of butter.
Add potatoes.
Sprinkle with parsley, sage, rosemary, salt and pepper.
Cook potatoes over low to medium heat turning every five minutes or so until potatoes are fork tender--approximately 20-30 minutes.
Cover potatoes with lid while cooking.
Transfer potatoes to crockpot.
Add corn and half-and-half.
Heat on low heat for about two to three hours.
Alternative method: place everything but flour and water in a stock pot and heat over medium heat until heated through – maybe 30 minutes or so.
Mix flour with enough water to make a thin paste.
Stir into soup to thicken.
Allow to heat in crockpot about 10 minutes or in stock pot about 5 minutes to thicken soup.
Ladle soup into bowls to serve.