I've just received this years "Low Syn Snacks" book and if it helps the following cans are low syn:
Weightwatchers
Italiana Bolognese Shells - only 5 syns on Green
Italiana Cheese Tortellini - only 3 syns on Green
Italiana Chicken & Red Wine Penne - only 2.5 syns on Green
Westlers
Beans & Mega Meatballs in Tomato Sauce - 4.5 syns on Green
Beans & Sausages in Tomato Sauce - 4.5 syns on Green
Stagg
Chili Con Carne Silverado Beef only 4.5 syns on Green Day
Vegetable Chili only 3 syns on Green Day
Tesco Own Brand
Healthy Living Mushroom Tortellini only 4.5 syns on Green
Pasta Arrabbiata only 2.5 syns on Green
Cheese Ravioli in Tomato Sauce only 3.5 syns on Green
Spicy Pasta Spirals 3 syns on Green
Value Ravioli in Tomato Sauce only 3.5 syns on Green
Cross & Blackwell
Waistline Tomato & Basil Pasta only 1.5 syns on Green
Waistline Tomato & Mascarpone Pasta only 3 syns on Green
Chesswood
Organic Vegetable Chilli - 2 syns on Green
Vegetable Casablanca - 1.5 syns on Green
Vegetable Casserole & Dumplings - 2 syns on Green
Campbells
Vegetable Curry - 1.5 syns on Green
Ye Olde Oak
Chicken Fajita Filling - 2 syns on Red
Hot Chilli Con Carne - 3 syns on Red
Tyne
Chicken Casserole with Vegetables in Gravy - 3 syns on Red
Minced Beef & Onion (180g) - 3.5 syns on Red
Hopefully this will be enough to keep you going for a while. If you can get to a class I recommend you get the latest Low Syn Snacks and Branded Free Food books there are plenty of other canned, chilled and frozen meals to go at especially own brands like M&S, Morrisons, Tescos, etc..
Kind regards and good luck back on SW.