Preheat the oven to Bake at 400° F. Prepare a baking sheet with parchment paper or silicone mat.
Prepare all the vegetables and set aside.
Mix together the balsamic vinegar, Dijon mustard, honey, sage, rosemary and black pepper.
Add all the vegetables except the spinach into sauce and mix until all vegetables are well coated. Once coated, pour onto the baking sheet and ensure vegetables are spread out into one layer.
Roast uncovered for 45-60 minutes or until all vegetables are tender.
On a plate, place the spinach and top with the roasted vegetables.