OK, never catered for this many at Xmas. Going to be a challenge. Have decided no starters and guests are asking to bring stuff so I've suggested canapés and deserts so all we have to focus on is dinner. Looking at a 7kg turkey from M&S. Questions.....will it fit in my oven (Neff 1.5 oven). Will 7kg be enough or too much. Also have to cater for two veggies. Any tips or suggestions most welcome!