Might be worth considering whilst Long Clawson and Hickling Cafes are shut. I’ve not been but the Vale of Belvoir Ladies have and recommend it. Prices look quite reasonable and it’s open everyday.
https://www.naturescape.co.uk/wp-content/uploads/2019/09/A5-Menu110919.pdf it’s on Coach Gap Lane, which is on the left as you head out of Langar towards Harby.
A new café at the Boot & Shoe pub in Flintham. Looked in there while passing today. It can handle small groups and is open every day. Space outside for warmer weather. Go under the archway and it is on the left. Might try it on Wednesday,
Little Jack's is closed 23 Dec-26 Dec and 30 Dec- 1 January inclusive. Old Wharf Café at Hickling is closed 21 December- 17 January inclusive. Please post any others you know of. If out over the holiday season be prepared for losing a café stop!