Preheat the oven to 350 degrees F. Drizzle the trout with olive oil and season with the Creole seasoning. Put it on a parchment lined baking sheet and place in the oven. Bake for 10 minutes, or until the fish is cooked through.
For the potatoes and vegetables: Heat a large saute pan over medium heat. Melt the 3 tablespoons butter, add the new potatoes, and saute for 5 minutes. Season with salt and pepper.
In another saute pan, saute the snap peas in 2 tablespoons butter for 3 minutes. Season with salt and pepper.
In another saute pan, saute the asparagus in the remaining 1 tablespoon of butter. Season with salt and pepper. Turn all of the vegetables out onto a large platter and keep warm.
For the sauce. Heat the olive oil in a large saute pan and season with salt and pepper. When the oil is hot, add the lovage, green garlic, and crushed red pepper and cook for 5 minutes. Remove from the heat.
To serve: Place the fish on top of the vegetables and potatoes. Pour the sauce over the fish. Sprinkle with a little more Creole Seasoning.
Combine all ingredients thoroughly.