Cook ground pork sausage in a large saucepan over medium heat, stirring until it crumbles and is no longer pink. Drain and remove sausage from pan.
Melt butter in saucepan over medium heat; add onion and garlic, and sauté until tender.
Add flour, stirring until smooth. Cook, stirring constantly, 1 minute. Gradually add milk, stirring until thickened. Add cheese, stirring until melted. Remove from heat; stir in sausage, beer, and next 3 ingredients. Transfer to a fondue pot or slow cooker; keep warm on LOW. Serve with cubed French bread or sliced pears.
*Nonalcoholic beer may be substituted for regular beer.