Place bread in a food processor; pulse 10 times or until coarse crumbs form to measure 1 cup.
Drain beans in a colander over a bowl, reserving liquid. Save 1 1/2 cups of liquid (add water if required).
Combine beans, thyme, sage, pepper, and 1 garlic clove in large bowl.
Heat 1 Tbsp oil in a large nonstick skillet over med-high heat. Add 3 garlic cloves, leeks, artichokes, rosemary, salt, ; saute 4 min. Stir in bean liquid. Cover, reduce heat, and simmer 10 min., stirring occasionally. Remove from heat.
Spread half of bean mixture in an 9×13 baking pan coated with cooking spray, and top with half of goat cheese. Spread artichoke mixture over goat cheese; top with remaining bean mixture and remaining goat cheese. Combine breadcrumbs and remaining 1 Tbsp oil, sprinkle over casserole.
Bake at 400F for 45 min. or until lightly browned and bubbling.