Blend the strawberries with olive oil, balsamic vinegar, Dijon mustard and honey as well as a pinch of salt and pepper until smooth - you can use a blender or small food processor but blender generally gets the mixture smoother. You can make the dressing ahead of time, if you prefer, and store in the fridge for a day or two.
For maple pecans
Set out a piece of parchment on a baking sheet/plate large enough to hold the pecans. Lightly toast the pecans, dry, in a small skillet/frying pan over a medium heat for a couple minutes, turning once or more as needed, until you can start to smell them a little nutty. They may start to brown slightly but make sure they don't burn. Add the maple syrup and quickly remove from the heat and toss them to coat evenly. Tip onto the parchment, separated, and let cool. These can also be made ahead and stored in a jar/box at room temperature.
To put together the salad
Place the spinach in a salad bowl or smaller bowls/plates. Husk the strawberries and halve, or quarter larger ones, and add on top, along with the candied pecans. Crumble over the feta. Drizzle over the dressing and enjoy.
Video
Notes
You likely will only need around half of the strawberry dressing for the amount of salad here, but it's hard to blend up much less. Nutritional information is, as always, approximate, but assumes using half the dressing.If you make double the amount of salad, you can probably keep the same amount of dressing, unless you want it heavily dressed.One quantity serves one as eg a lunch, or around 2 if served more as an appetizer or side.