Lamiaceae: "Start small," they say. And, indeed, the Lamiaceae family is composed of small herbs including basil, mint, rosemary, sage, oregano, lavender and thyme... to name a few. And, with the exception of lavender for medicinal (read: mental) purposes, I know I'm not a large fan of this family's flavor. But, if you are, I suggest checking out the Greek shop, Daphnis and Chole.
Cucurbitaceae: Gourds are gross. 'Cept for cucumbers. Maybe watermelons.
Legume: According to Wikipedia, "a legume is simply a dry fruit that develops from a simple carpel... and usually [opens] on two sides. But peas, beans, peanuts, soybeans and even clovers differ from our conventional ideas regarding "fruit" (a definition which technically includes vegetables). And, to some extent, members of the legume family are different than most fruits. Legumes, provide us with a great source of protein. Indeed, I recall my father eating them on the daily in order to maintain his vegetarian habit. And, like members of the Brassica family, they're often cheap (if not salty) in canned form. So while kimchi and kale chips are a large part of my nutritional repertoire, I usually whip up a bowl of hummus to go with them.
To be sure, these are just several of the "families" which exist within the Plantae Kingdom. There are many others like the grass and parsley (or Apiaceae) family which I chose not to address in depth (mostly because I don't like them). However, it's important to note that many of these families (like many of the ones I grew up with in Rhode Island) are related. Of course, they're all plants. But, as taxonomy breaks down from kingdoms into phylums and eventually into families, there's an important point when the above families either fall into the unranked categories of Asterdids or Rosids. While tastes might seem to be objective and individual, there seems to be some scientific basis behind them. In general, the Lamicaeae, Apiaceae and Solanaceae fall under the auspices of Asterdids while the Brassica and Cucurbitaceae families fall under the category of Rosids. And when I think about my salads, I know I'd fall for one of cabbage and cucumbers over lettuce and tomatoes any day. As Socrates said... "know thyself."