Half Moon cast iron plate for Kamado 21″ is a practical accessory designed to expand the cooking possibilities of a ceramic Kamado grill.

Unlike a classic cooking grate with open bars, the plate provides a solid contact surface, making it easier to cook ingredients that are more difficult to handle directly on a grate: burgers, fish, seafood, sliced vegetables, bacon and other smaller foods.

Its main advantage is the Half Moon / semicircular shape. The plate covers only half of the Kamado cooking area, leaving the other half available for a grate or another accessory.

🌓 Half Moon — two cooking methods at the same time

Instead of covering the entire grill with a cast iron plate, the Half Moon format allows a setup such as:

½ cast iron plate + ½ cooking grate

This means that during the same BBQ session you can cook:

On the cast iron plate:
🍔 burgers
🥓 bacon
🐟 fish
🍤 shrimp
🧅 onions
🍄 mushrooms
🥦 vegetables

On the grate:
🥩 steaks
🍗 chicken
🌭 sausages
🍖 chops

This system makes the Kamado much more flexible when different types of food need to be prepared at the same time.

🔥 Cast iron — excellent heat retention

Cast iron has high thermal inertia. Once preheated, it stores a large amount of energy and transfers heat intensively to the food.

This is especially useful for:

✔ strong searing;
✔ developing a well-formed crust;
✔ stable cooking temperatures;
✔ cooking meat;
✔ burgers;
✔ vegetables;
✔ high-temperature cooking.

Combined with the thermal efficiency of a ceramic Kamado, the cast iron plate creates a highly effective surface for direct cooking.

🍔 Excellent for burgers

The cast iron plate is particularly useful for burgers.

Unlike an open-bar cooking grate, the solid surface creates much more contact between the meat and the hot cast iron. This helps achieve stronger browning and a more pronounced crust.

If the surface of this model is completely smooth, it is also very suitable for the Smash Burger technique.

🐟 Fish and seafood

Another important advantage over a conventional grate is the ability to cook delicate ingredients.

The cast iron plate can be used for:

🐟 salmon fillets
🐟 fish fillets
🍤 shrimp
🦑 squid
🐚 seafood

Small pieces cannot fall through the grate bars, while the solid surface provides better control over cooking.

🥦 Vegetables and side dishes

The plate is also very practical for:

🫑 peppers
🧅 onions
🍄 mushrooms
🥒 zucchini
🥔 potatoes
🌽 corn
🥦 other vegetables and side dishes

You can prepare side dishes on the Half Moon plate while meat cooks on a grate positioned on the other half of the Kamado.

Half Moon Plate vs Half Moon Grate

For CasaGrill, it is important to distinguish these two accessories because customers may confuse them.

Feature	Half Moon Plate	Half Moon Grate
Surface	Solid	Open bars
Steak	✓	✓✓
Burger	✓✓	✓
Smash Burger	✓✓*	—
Delicate fish	✓✓	✓
Shrimp	✓✓	✓
Small vegetables	✓✓	✓
Classic grill marks	Depends on surface	✓✓
Zoned cooking	✓	✓

* if the plate surface is smooth.

For this reason, the two accessories do not replace each other — they complement each other.

Recommended combination

For users who want to make better use of their Kamado, the following setup is especially useful:

½ Half Moon cast iron plate + ½ Half Moon cast iron grate

Burgers, vegetables or fish can be cooked on the plate, while meat and steaks cook on the grate.

Specifications

Specification	Details
Type	Half Moon plate / griddle
Shape	Semicircular
Material	Cast iron
Compatibility	Kamado 21″
Direct cooking	Yes
High-temperature cooking	Yes
Burgers	Yes
Meat	Yes
Fish	Yes
Vegetables	Yes
Zoned cooking	Yes
Can be combined with a Half Moon grate	Yes, if the Kamado system allows it

Compatibility note: before purchasing, check the actual dimensions of the accessory and the internal support system of the grill. The designation “Kamado 21″” does not guarantee that accessories from different manufacturers have exactly the same dimensions.

Main advantages

✔ Robust cast iron construction
✔ Compatible with Kamado 21″
✔ Half Moon / semicircular design
✔ Excellent heat retention
✔ Strong heat transfer
✔ Ideal for burgers
✔ Suitable for meat and steaks
✔ Excellent for fish
✔ Suitable for shrimp and seafood
✔ Ideal for vegetables and side dishes
✔ Small foods cannot fall through open grate bars
✔ Allows two-zone cooking
✔ Can be combined with a Half Moon grate
✔ Expands the capabilities of the Kamado grill
✔ Very useful accessory for outdoor BBQ

Cast iron plate care

To keep the plate in good condition:

✔ preheat it gradually;
✔ avoid thermal shock;
✔ do not pour cold water over very hot cast iron;
✔ remove food residue after use;
✔ dry the plate thoroughly before storage;
✔ if the cast iron is not enamelled, periodically apply a very thin layer of cooking oil;
✔ store in a dry place.