Begin by roasting the chicken: Preheat the oven to 450 degrees. Put the chicken in a small baking dish and sprinkle the seasonings all over the chicken. Add the olive oil and butter to the tops of the breast, and drizzle on the lemon juice. Bake for twenty minutes or until the chicken is no longer pink in the middle. When the chicken is done, chop the breasts in half inch pieces.
Also, wrap each ear of corn in aluminum foil and add a teaspoon of butter to each parcel. Bake on a pan along with the chicken. When the corn is done, remove the kernels from cobb.
Meanwhile while the chicken cooks, hard boil the eggs. Place the eggs in a two-quart saucepan and cover them with cold water. On high heat, bring the water to a boil. Then, turn down the heat, and simmer the eggs for 15 minutes. Drain the eggs and peel them under cold running water. Slice the eggs in half inch pieces, and chill.
Also, make the vinaigrette by processing the ingredients in a food processor, or shaking them up in a jar.
Put all the arugula in a large bowl, or on a large platter. Arrange the corn, cooked chicken, bacon, avocado, eggs, blue cheese, and tomatoes in rows on the spring greens. Drizzle on as much dressing as you like.