This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A dish, usually of earthenware, glass, or cast iron, in which food is both baked and served.

n. Food prepared and served in such a dish.

n. Chemistry A small-handled, deep porcelain crucible used for heating and evaporating.

n. A dish of glass or earthenware, with a lid, in which food is baked and sometimes served.

n. Food, such as a stew, cooked in such a dish.

n. A small round dish with a handle, usually of porcelain.

n. A mold (in the shape of a hollow vessel or incasement) of boiled rice, mashed potato or paste, baked, and afterwards filled with vegetables or meat.

n. A stew-pan or saucepan.

n. Hence— A dish prepared in such a pan; a sort of stew: as, a casserole of mutton.

n. A sort of cup made of rice, mashed potatoes, or the like, and browned in the oven, designed to contain some delicate and highly flavored dish.

n. Less properly, a rim or edging, as of rice, around the edge of a dish of stew, or the like.

n. A small handled dish, almost as deep as it is wide, made of porcelain, and holding from 5 to 20 ounces, used in chemical laboratories for evaporating solutions to dryness and for other purposes.

n. food cooked and served in a casserole

n. large deep dish in which food can be cooked and served

"The term casserole means "saucepan" in French, but a more modern translation should be"

casserole dish    stew    a    hotpot   

burgers    cutlet    risotto    chili    patty    curry    fritter    chowder    omelet    broth