Hi Molly
Welcome along.
Firstly, don't worry. It's your first week, your first couple of days. We all made mistakes in our first week, heck: I still make them now! You've had a few syns and even if you went over your 15 allowance for the day, it won't affect your losses too much as a one off.
I'd hazard a guess that eating a soya Shepherds Pie with sweede is a much healthier way of eating compared to how you were eating before. You're still on track for a good loss this week in your first week, so put the little mistake behind you and move on.
If you tell us the full name and size of the frozen thing you want to know the syn value for, I'll look it up for you and post it here. In future, at the top of the Slimming World forum you'll see a board called 'Syn Requests'. Just type there what you want to know and someone will get back to you.
Well done for making the commitment to Slimming World and for taking it so seriously. But, honestly, don't worry about the odd little error - we all do it and it will work out okay.
Good luck,
Ste
x