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The dimensions in area are 13" x 12.5", so unless the casserole is more than 7.25" high you _should_ be fine. This assumes the casserole bowl "outer" dimensions are 13x9, without large handle lips.
I would recommend:
Sorry, there was a problem. Please try again later.The interior is 12" x 12" (front to back, left to right) Upper rack to heating element 3" lower rack to heating element 5"
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