Thunder Bay Grille: Rockford, IL Thunder Bay Grille restaurant in Rockford, IL offers alluring entrees for everyone. Join us at our restaurant in Rockford Illinois and choose from our hand cut steaks like the Rockin' Ribeyes and our Slow-Roasted Prime Rib, Roaster Spit Rotisserie Chicken - just like cooking on a spit over a campfire, and our Cajun is always rajun with our most popular Jambalaya and New Orleans Catfish. At Thunder Bay Grille in Rockford, IL Appetizers set the hook, while the Wild Sides and Tempting Desserts capture the most elusive appetites. Guests enjoy beers and wines from around the world at our hearthside bar. Thunder Bay Grille provides the flavor of the great outdoors both visually and in the food we serve. Thunder Bay's casual dining restaurant combines wood with stone and lodge style trapping to give you a true northern dining experience. Take a bite out of the Great Outdoors and visit us in the Greater Rockford, IL area. In charge of planning for a group gathering? Let us take the hassle out of your worries. We do it all! From birthdays, wedding and receptions, business meetings, club meetings. We can cater to your needs at your place of choosing or right here at Thunder Bay Grille for up to 175 people! Call us today at: 815.397.4800 and let us develop the perfect menu for your special requirements! ROCKFORD, IL MENUS Dinner Menu Lunch Menu Catering & Banquet Menu Operation Fresh Fish Features  Mother's Day Brunch  |