Spinach Salad with Red Wine Vinaigrette is the best weekday salad! It's easy and fast, made with fresh spinach, tomatoes, cucumbers and crunchy walnuts.
Combine dressing ingredients in a small bowl and whisk to combine. Or, combine together in a sealable jar and shake.
Assemble the salad: Arrange spinach leaves in a large bowl and toss with some of the dressing and the red onions. Top with walnuts and feta cheese if desired. Offer additional dressing on the side.
Optional fruit add-ins: apples, pears, strawberries, watermelon, blueberries.