Begin by roasting the artichokes and peppers: Preheat the oven to 350 degrees. Place the peppers on a baking sheet and bake for one hour. Put the frozen artichokes in a Dutch oven along with the oil, garlic, the thyme, lemon juice, bay leaf, and salt and pepper. Cover and bake for one hour.
While the artichokes bake, prepare the rest of the ingredients: In a large skillet on medium heat, add the oil and the spinach and cook the spinach until it's wilted and dry. Drain it in a colander and press out any water.
When they're done, remove just the artichokes from the pot and place them in the food processor along with the spinach. Process until they're chopped and blended. Empty them into a mixing bowl and stir in the creme fraiche, cream cheese, and a half cup of the Parmesan.
Spoon everything into a one quart baking dish and top with the rest of the Parmesan. Bake at 350 degrees for 20 minutes, or microwave it for a few minutes.Serve hot with veggies or sliced bread.