Two-Cheese Baked Chicken Alfredo

(dry) fettucine or linguine pasta

medium chicken breasts, cooked and cubed (about 2 cups)

pkg (10 oz) chopped spinach, very well drained

slices crisp-cooked bacon, diced

grated parmesan or romano cheese

shredded asiago cheese, divided

panko crumbs

Sauce Base:

water (see note)

envelope chicken Swanson Flavor Boost (see note)

heavy cream

butter

flour