In a 10-inch heavy-bottom sauté pan, heat vegetable oil over medium-high heat. Season trout fillets using salt and pepper and coat lightly in the seasoned flour. Shake off all excess and sauté fillets, 2 at a time, in hot oil until golden brown, 3-5 minutes on each side. When done, remove and keep warm in 300 degrees oven. In the same sauté pan, melt butter over medium-high heat. Add garlic, shallots and green onions and sauté 2-3 minutes or until vegetables are wilted. Add jumbo lump crabmeat, zucchini and squash. Sauté 3-5 minutes or until vegetables are wilted. Add 1/2 cup chicken stock and season with thyme, basil, salt and pepper. Bring mixture to a high simmer and cook until vegetables are al dente. Add purple cabbage just prior to serving and wilt, approximately 3-5 minutes. This last-minute addition will prevent the purple coloring of the cabbage from discoloring the dish. When ready to serve, place an equal amount of the Mardi Gras medley in the center of a serving plate and top with a cooked trout fillet. You may wish to further garnish with additional crabmeat and a spoon of Hollandaise sauce.