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Toxic Waste Mac and Cheese

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This creepy green mac and cheese is packed with cheddar, spinach, and cauliflower for a Halloween dinner that’s as spooky as it is secretly healthy!

Ingredients

1/4 cup unsalted butter

1/3 cup all-purpose flour

2 1/2 cups whole milk (or unsweetened cashew milk or Half & Half)

1/2 tsp sea salt

1/4 tsp ground black pepper

1/4 tsp paprika

1 tsp onion powder

1 tbsp dry mustard powder

1/16 tsp cayenne pepper (or more, to taste)

8 oz sharp white cheddar cheese, grated (e.g., Vermont sharp white cheddar)

1 package frozen spinach, thawed and drained

Green food coloring (optional, for extra color)

1 lb dry pasta (e.g., medium shells), cooked and drained

1 head fresh cauliflower, cut and steamed (leave in chunks for visual effect)

Instructions

Make the Roux:
In a large pan or Dutch oven, melt the butter over medium-low heat.
Add the flour and whisk constantly for 1–2 minutes to cook off the raw flour taste.

Make the Sauce Base:
Gradually pour in the milk, whisking until smooth and lump-free.
Add salt, pepper, paprika, onion powder, cayenne, and dry mustard. Stir to combine.

Simmer & Add Cheese:
Bring the mixture to a simmer (about 6–8 minutes), stirring regularly.
Remove from heat and stir in the grated cheddar until completely melted and smooth.

Add Color & Greens:
Stir in the drained spinach until well incorporated.
Add green food coloring a few drops at a time to reach your desired shade of “toxic” green.

Assemble Mac and Cheese:
Stir in the cooked and drained pasta until fully coated with sauce.
Gently fold in steamed cauliflower. Leave in large chunks for a spooky “toxic clump” look.

Serve:
Serve immediately while warm. Add extra food coloring or toppings if desired for Halloween presentation.

Notes

Medium shell pasta adds a creepy, bumpy look.

Sharp white cheddar helps achieve a green hue easily.

You can omit green coloring if you prefer a natural appearance.

For visual flair, keep cauliflower chunks whole and arrange them on top.

Optional: Serve in a metal “toxic can” or themed bowl for extra Halloween effect!