Combine all the ingredients for the dressing in a small bowl. Set aside.
Toss together in a salad or mixing bowl the baby spinach, strawberries, pecans and goat cheese (optional). Top with the dressing right before serving.
Please note that you can lower carbs significantly by reducing the amount of strawberries (they can go a long way after all). Though I must say that I like the added nutritional benefits of said berries, so I don't mind digging in (within reason!).