You could take Sainsbury's Extra Lean Stewed Steak and heat that up, eat with some pasta, or cook some baked beans, boil an egg and have that on your HEB 2 slices of wholemeal toast. Take lots of fruit and carrots (and other veg) for nibbling on. Have a look for some Syn free sausages, I think people on here have said you can by them at Morrisons but not sure of the exact type.
Will come back if I think of anything later
ETA cross posted with everyone above!!