The unique addition of fresh beets — known as beetroot in London — mixed with these ingredients makes for a surprising, but delicious salad that everyone at Downton Abbey would enjoy. The festive mix of sweet flavors (such as maple syrup and orange juice) would provide guests at any garden party or luncheon with an extra excuse to smile.
Place the beets in a saucepan and cover with water. Bring to a boil, and then cook for 30 minutes or until tender. Drain and cool, then cut the beets into cubes.
Place the walnuts in a skillet and briefly heat over medium-low heat. Add the maple syrup and butter. Cook and stir until the walnuts are evenly coated, then remove from the heat and let cool.
In a small bowl whisk together the orange juice concentrate, balsamic vinegar, and olive oil, and set aside.
Place a large helping of spinach leaves on plates, then divide the candied walnuts among plates over greens. Place equal amount of beets over greens, then top with feta cheese. Drizzle each plate with some of the dressing, followed by orange slices.