This section is from the book "Studies of American Fungi: Mushrooms, Edible, Poisonous, Etc.", by George Francis Atkinson. Also available from Amazon: Studies of American Fungi: Mushrooms, Edible, Poisonous, Etc..
Select twelve large-sized morels; cut off the stalks, and throw them into a saucepan of warm water; let them stand for fifteen minutes; then take them on a skimmer one by one, and drain carefully. Chop fine sufficient cold boiled tongue or chicken to make one cupful; mix this with an equal quantity of bread crumbs, and season with just a suspicion of onion juice, not more than ten dops, and a dash of pepper. Fill this into the mushrooms, arrange them neatly in a baking pan, put in a half cup of stock and a tablespoonful of butter, bake in a moderate oven thirty minutes, basting frequently. When done, dish neatly. Boil down the sauce that is in the pan until it is just sufficient to baste them on the dish; serve at once.
Select large-sized morels; cut off the stalk; wash well through several waters. Put into a frying pan a little butter, allowing about a tablespoonful to each dozen mushrooms. When hot, throw in the mushrooms, and toss until they are thoroughly cooked; then add a half pint of milk or stock; cover the vessel, and cook slowly twenty minutes; dust with salt and pepper, and serve in a vegetable dish. This method gives an exceedingly palatable and very sightly dish if garnished with sweet Spanish peppers that have been boiled until tender.
Remove the stems, and wash the morels as directed in the preceding recipe. Make a stuffing of bread crumbs seasoned with salt, pepper, chopped parsley, and sufficient melted butter to just moisten. Place them in a baking pan; add a little stock and butter; bake for thirty minutes. When done, dish. Into the pan in which they were cooked, turn a cupful of strained tomatoes; boil rapidly for fifteen minutes until slightly thickened; pour this over the mushrooms; garnish the dish with triangular pieces of toasted bread, and serve.