1 1/2 lbs fresh mushrooms, such as crimini, porcini, shiitake, or common (use one kind or a combination), cleaned (see below) & thinly sliced
2 c shredded jack cheese (about 8 oz.)
6 large eggs
2 tsps minced or pressed garlic
1 loaf (1 lb.) day-old crusty sourdough bread, cut diagonally into 1/2-inch-thick slices (see notes), ends discarded
4 tsps sherry vinegar
2 tbsps olive oil
6 oz shelled cooked crab, any bits of shell removed
3 1/2 c milk
2 tsps fresh thyme leaves
About 1/8 tsp pepper
1/3 c sliced green onions, white & pale green parts only
About 1/4 tsp salt
Directions
Step #1 Pour olive oil into a 12-inch frying pan or 14-inch wok over medium-high heat; when hot, add mushrooms & garlic & stir until mushrooms begin to brown & liquid has evaporated, 3 to 5 mins.
Step #2 Add vinegar & thyme; cook, to mix flavors, stirring often, 1 to 2 mins longer.
Step #3 Add salt & pepper to taste.
Step #4 In a bowl, milk, 1/4 tsp salt, whisk eggs, & 1/8 tsp pepper to mix.
Step #5 Cover up bottom of a 3-quart baking dish (such as 9 by 13 in.
Step #6 , at least 2 in.
Step #7 deep) with bread slices, trimming if necessary to fit in a single layer.
Step #8 Spread half the mushroom mixture over bread; top this with all the crab, half the green onions, & 1 c cheese.
Step #9 Pour half the custard mixture evenly over cheese.
Step #10 Arrange another layer of bread on top (overlap slightly if desired; save any extra bread for other uses), green onions, followed by remaining mushroom mixture, & 1 c cheese.
Step #11 Spoon remaining custard mixture evenly over the top.
Step #12 Let strata stand at about room temp about 15 mins, or cover & chill in the fridge.
Step #13 Bake, in a 350° regular or convection oven until center is set (cut to test) & top is well browned, uncovered, 45 to 50 mins.
Step #14 Cut into rectangles or scoop out with a large spoon to serve.
Step #15 Cleaning mushrooms: Trim off tough or discolored bottoms of mushroom stems & any bruised spots or blemishes.
Step #17 ) For firm mushrooms such as portabellas, wipe dirt off with a damp cloth or place this in a colander, rinse thoroughly under cool running water, & pat dry with towels.
Step #18 For delicate mushrooms that have lots of places for dirt to hide, such as chanterelles & hedgehogs, submerge in a bowl of cool water & carefully agitate with you hands to loose any particles.
Step #19 Drain, rinse carefully under running water, & carefully pat dry with a towel.