Who is this for?

Single-portion reheaters

If you usually heat one plate or small bowl, a compact solo microwave is worth considering once you have checked that your covered dish fits and can rotate. Panasonic and Russell Hobbs both describe 20L models with turntables of approximately 25.5cm.

People reheating larger dishes

For wider or multi-portion casserole dishes, compare the dish with the usable cavity and turntable, or consider a flatbed design. Panasonic lists larger-turntable and flatbed solo models, but the dimensions of your own dish remain decisive.

People sharing the appliance

When several people use and clean one microwave, straightforward controls and a practical way to clear spills matter alongside dish fit. Everyone using it still needs room to stir the casserole and check it throughout.

What matters when choosing?

Start with the dish you actually use and a reheating routine that lets you stir it; then compare cleaning, controls and available worktop space.

Concern What to check Who this matters to
Thorough reheating Look for controls that make it easy to pause and stir, with enough room to access the dish. Do not treat an automatic programme as a substitute for checking the food. With a thick portion, I need to stir it and check the middle rather than rely on a hot edge; around 36% of consumers put thorough reheating first.
Dish fit Compare your covered dish’s width and height with the cavity and, on turntable models, check that it can rotate freely. If I bring a wide casserole dish, it needs to fit before extra programmes matter; roughly 29% of consumers prioritise dish fit.
Shared use and cleaning Consider how easily users can set time and power and clean spills; check whether a turntable is removable if you want one. When several of us use the microwave, I want controls we can follow and spills we can clear promptly; about 21% of consumers make shared-use simplicity their main concern.
Worktop space and functions Measure the available space and check the appliance dimensions. A solo model covers heating and defrosting if those are the kitchen’s main tasks. In a crowded kitchen, I would rather leave worktop room than choose cooking modes we will not use; around 14% of consumers put space and functions first.

Mistakes to avoid

  • Choosing by litre capacity alone

    A casserole dish can be too wide to fit or rotate even when the stated capacity sounds sufficient.

    Measure your usual covered dish, including its height, and compare it with the cavity and turntable dimensions. For an awkwardly shaped dish, consider whether a flatbed layout would suit it.

  • Judging reheating by a hot edge

    Thick food may be hotter at the edges than in the centre. The Food Standards Agency advises stirring during microwave reheating, and NHS guidance says food should be steaming hot all the way through.

    Pause to stir, follow applicable food and appliance instructions for standing, and check the casserole throughout before eating.

  • Choosing cooking modes the kitchen will not use

    Which? describes a basic solo microwave as suitable for heating and defrosting; grill and combi models add different cooking functions.

    Choose those extra modes only if shared-kitchen users also plan to grill, bake or crisp food.

  • Overlooking communal cleaning

    Casserole splashes are less troublesome when users can reach and clean the affected surfaces promptly.

    Check the cleaning instructions and whether any turntable is removable, then agree to wipe up spills after use.

Relevant brands to consider

Panasonic

Panasonic’s UK solo range offers compact turntable models as well as larger-turntable and flatbed layouts to compare against different casserole dishes.

  • Panasonic lists a 255mm turntable for the 20L NN-E27JWMBPQ and a 34cm turntable for the 32L NN-ST46KBBPQ.
  • Check the dimensions and worktop space for the particular model; inverter or sensor functions do not replace stirring and checking the food.

Russell Hobbs

The RHM2076B is a reference point for a freestanding 20L digital solo microwave with straightforward reheating controls.

  • Russell Hobbs specifies 800W output, five power levels and a removable, dishwasher-safe 25.5cm glass turntable for the RHM2076B.
  • Compare a wide casserole dish with the turntable and cavity rather than assuming it will fit a 20L model.

Sharp

Sharp’s YC-MS01U offers a compact, manually controlled solo-microwave option for people who prefer dials.

  • Sharp lists 20L capacity, 800W output and five power levels for the YC-MS01U.
  • If your dish or shared-use routine calls for particular programmes, check the features of the exact model rather than relying on its control style alone.

Joybuy microwaves for reheating casserole

These solo microwaves offer compact 20L options and roomier 23L–25L options for a shared kitchen. Compare your covered dish and available worktop space with the exact model before choosing; none removes the need to stir and check the casserole.

Russell Hobbs RHM2063-AH black digital microwave

Russell Hobbs RHM2063-AH 20L digital microwave, black

A compact option for reheating a single portion when your covered dish fits. The product title specifies 800W and five power levels; check dish clearance before buying.

View on Joybuy
Hisense H25MOBS7HUK black digital solo microwave

Hisense H25MOBS7HUK 25L digital solo microwave, black

Consider this 900W model when comparing roomier cavities for a casserole dish. Its title also lists auto defrost; check that your covered dish fits and that the appliance suits the available worktop.

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Sharp YC-PS201AU-S silver manual solo microwave

Sharp YC-PS201AU-S 20L manual solo microwave, silver

A compact manual-control option for shared users who want to set time and power directly. The title specifies 700W, six power levels and defrost functions; check that the casserole dish fits.

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Daewoo SDA1961 grey manual solo microwave

Daewoo SDA1961 20L manual solo microwave, grey

A manual-control option for reheating in a shared kitchen. The title specifies 800W and a defrost function; confirm that your covered dish fits and check the power-setting count if it matters to you.

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Hisense H23MOBS5HUK black solo microwave

Hisense H23MOBS5HUK 23L solo microwave, black

Consider this 800W option if you want to compare a 23L cavity with compact models. Check your dish’s clearance and confirm the controls on the exact listing before buying, as its control descriptions conflict.

View on Joybuy

Common questions

How should I reheat chicken casserole in a microwave?

Stir it during reheating and make sure it is steaming hot all the way through before eating. The Food Standards Agency describes reheating as cooking food again, not merely warming it; follow any applicable food and appliance instructions, including standing guidance.

Is a 20L microwave big enough for one casserole portion?

It can be, provided your covered dish fits and rotates freely. Panasonic and Russell Hobbs list compact 20L models with turntables of approximately 25.5cm, but you should compare your own dish with the exact model’s turntable and cavity dimensions.

Do I need a grill or combi microwave to reheat casserole?

No: a solo microwave covers heating and defrosting, as Which? explains. Consider grill or combi functions only if people sharing the kitchen will also use those additional cooking modes.