Join Foundry on Elm for a sudsy dinner on the cheap this fall. Each Thursday, get a two-course prix fixe with beer pairings for just $20. The menu features different breweries each week for the month of October: on the 8th, chef Shayne Nunes will whip up food to complement the wares of Snowdrift Cider Co. Then, on October 15th, Sixpoint Brewery makes a cameo.  The month rounds out on the 22nd and 29th with Brooklyn Brewery and Oskar Blues. No reservations required for this Beer Dinner Series, so hop the red line to Davis Square any time after 5:00pm.