I want to make 2 quiche( or tarts) for my Sunday lunch group. I make a pretty tasty traditional bacon or ham and onion version. But when I have tried veggie versions (spinach/mushroom) they have come out kind of watered down tasting and boring. Any suggestions or recipes that amp up the flavor a bit? Does not need to be vegetarian, I just want to provide some variety. Quiche or tart recipes of interest but I will not be making any specialize crusts. Maybe the problem with my spinach/mushroom version was it was for a family member who hates onions. That restriction does not exist for this occasion.