For the gazpacho: Juice all gazpacho vegetable ingredients through a juicer.
For the mayonnaise: In a blender, blend egg yolks and slowly add olive oil. Season the mayonnaise with lemon juice, salt and cayenne pepper. Blend in gazpacho juice.
For the terrine: Roast beets in a preheated 400 degree oven wrapped in aluminum foil with salt and cumin seed for approximately 1 hour until cooked. Peel beets. Slice into 1/2-inch thick slices and layer in a 1 liter terrine. In between beet layers, add beef consomme that has been mixed with shallots, chives, salt and pepper. Cover with plastic and place in refrigerator for at least 4 hours.
For the assembly: Pour the gazpacho into a bowl and top with a 1-inch thick slice of the terrine.