I'd like to take a homemade savoury tart in for lunch at work, with salad. Either a slice of a big tart or make mini ones. I am not keen on egg, so anything too quiche like is not appetising for me. Any ideas? I make a basic one at the moment with puff pastry sheets and a layer of pesto or olive tapenade and grated cheese on top. Would love something more substantial. Was thinking of caramelising some onions and piling those on with some brie or blue cheese. Any other ideas, incorporating veggies to up my vegetable intake (I'm vegetarian, so no meat options).