Great side dish
Undercooking the broccoli before assembly leaves the vegetable fibrous rather than tender within the cheese sauce. Raw or under-steamed florets retain too much water, releasing moisture during the 20-minute bake at 350 degrees and breaking the emulsion of the Velveeta sauce. Thoroughly draining the cooked broccoli prevents a watery separation at the bottom of your 9x13 casserole dish. Assembled layers can be refrigerated for up to 24 hours before baking, though dry cracker crumbs should be added immediately prior to the oven to maintain their crunch. Freezing unbaked pans is also viable if wrapped tightly in plastic and aluminum foil for up to one month; thaw completely in the refrigerator overnight before baking. Mixing melted butter into the crushed Ritz crackers uniformly coats every crumb, ensuring a deeply golden brown crust develops without burning. Watch the edges of the dish closely during the final minutes of baking to gauge exact doneness.