Couple of places to check out in VT, if your route back up to Quebec takes you that way:
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Rabbit Hill Inn (Lower Waterbury) - Never stayed there myself, but have only heard raves about it from many folks.
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Four Columns Inn (Newfane) - Great food, they have lodging too (if same quality as restaurant, quite good). This could be fun if you have time to drive some non-interstates...
- Many, many options around greater Manchester area - lodging and dining mecca. Very accessible from major interstate and VT state routes.