Once boiling, cook the cauliflower in one pot for 15 minutes and the potatoes in the other pot for 20 minutes, or until both are tender.
Once cooked, drain the cauliflower and potatoes and let them cool.
In a large mixing bowl, combine the mustard and red wine vinegar.
Slowly add the olive oil while whisking vigorously with a small whisk or fork until emulsified.
Add the cooked cauliflower, potatoes, chopped green onions, and black olives to the dressing.
Season with salt and pepper to taste, then gently mix all the ingredients until well combined.
Serve immediately or refrigerate until ready to serve.
Notes / Tips / Wine Advice:
Wine Advice:
This Mediterranean-inspired salad pairs well with a light-bodied red wine such as Pinot Noir or a crisp white wine like Pinot Grigio. The acidity and fruitiness of these wines complement the tangy dressing and savory olives while refreshing the palate.