Heat broiler. Brush both sides of bread slices lightly with oil; place on baking sheet. Broil 4 to 6 inches from heat 4 to 6 minutes or until lightly browned, turning once. Cool.

Lightly brush 1 1/2 to 2 cup gratin or baking dish with oil. Pat artichokes dry with paper towels; remove any tough or prickly bits. Place in food processor; pulse until chopped. Or chop by hand into 1/2 inch pieces. Should make about 1 cup.

In medium bowl, stir together artichokes, garlic, blue cheese, olives, sour cream, parsley, lemon juice and pepper. Spread mixture in baking dish; sprinkle with cheese.

Heat oven to 375°F. Bake 20 to 30 minutes or until bubbly and lightly browned. Serve with toasted baguette slices.