'Flat' in the Bible

If your offering [is] a [grain] offering [baked] on a flat baking pan, it must be finely milled flour, unleavened bread mixed with oil;

It must be made in oil on a flat baking pan; you must bring it well-mixed; you must present pieces of a grain offering's baked goods [as] an appeasing fragrance to Yahweh.

And every grain offering that is baked in the oven and all that is prepared in a cooking pan or on a flat baking pan {belongs to} the priest who presented it.