J Gilbert's is not casual dinner; it's a premium steakhouse. I love the spot but be prepared for premium prices. They have other entrees but to me, if you're going there, you get steak. It gets quite busy too, even on weeknights so a reservation is a good idea.

Beamhouse and Bin228 are more casual dining in my opinion, albeit a little upscale. They both have great menus. If you want Italian there's also Bricco (again, it's Glastonbury so it's a bit upscale). The diamond is a local sports bar, could be the vibe you're looking for. South Glastonbury has Sayulita for mid-high end Mexican and Cotton Hollow Kitchen for gastropub fare. There is also 2 Hopewell, upscale American bistro. Great food but a little pricey.