The Market Kitchen, in Ashton-in-Makerfield, looks good to me:
https://www.facebook.com/Marketkitchen2015#_=_
(It's open Tuesday to Saturday, 1200 to 2230)
It's TripAdvisor reviews are fantastic:
https://www.tripadvisor.co.uk/Restaurant_Review-g5232750-d8829830-Reviews-Market_Kitchen-Ashton_in_Makerfield_Wigan_Greater_Manchester_England.html
Directions:
Leave the M6 at Jn 24, taking the A58 exit (towards Ashton & St Helens)
At the end of the slip road, turn left onto the A58 (Liverpool Road).
After ½ mile, turn right onto the A49 (Warrington Road), where the Market Kitchen is the first building on your left.
(In practice though, since you'll need to find car parking, it's probably best to go straight on at that junction and then, almost immediately, turn left onto Bryn Street and then first right onto Garswood Street, where you'll find the free Ashton Market Car Park).