I planted nasturtiums in my wee polytunnel along with calendula as they're good companion plants for my tomatoes. And they are thriving!!
Lots and lots of flowers from just 10 plants!
I knew the flowers were edible but I discovered that the leaves are edible too. A bit peppery and delicious chopped up in a salad with kale and baby spinach leaves 😋
I'd also heard that nasturtium seeds could be pickled as a sub for capers. I love capers and pretty much anything pickled so I'm having a go using this recipe HERE Plus there's loads more info on nasturtiums too.
Basically you can eat the whole plant. Now that's frugal gourmet stuff!