Who is this for?

People planning freezer lunches

An individual pack is useful only if its portion size, cooking directions and preparation time work for your lunch break.

Shoppers comparing protein

Check the protein stated for the portion you will eat, then compare the rest of that meal’s nutrition rather than choosing by a front-of-pack claim alone.

People watching salt, saturated fat or energy

Compare meals on the same serving basis. Traffic-light colours can help you scan salt and saturated fat, but the full panel gives you more detail.

What should you compare?

Start with the portion you expect to eat, then compare like with like. The NHS explains that UK nutrition information is given per 100g and may also be shown per portion.

Priority What to check Your needs
Salt and saturated fat Compare both figures for the whole pack or intended portion. Where shown, traffic-light colours indicate low, medium or high levels of each nutrient. I eat this sort of lunch regularly, so I want to see its salt and saturated fat alongside its energy figure.
Fibre and vegetables Check fibre where declared, and read the ingredients. Treat a stated vegetable-portion claim as applying only to that particular meal. Vegetables and fibre matter to my choice; I do not want to infer their amounts from a dish name.
Protein Compare grams of protein for the portion you will eat. Read energy, salt and saturated fat alongside it. A protein-focused lunch appeals to me, but I still need the complete meal to fit my other preferences.
Portion and energy Confirm whether the pack is intended for one person. Distinguish figures per 100g from those per pack or prepared portion. If I will eat the entire tray, the whole-pack figure is more useful to me than a smaller stated serving.
Preparation Check whether the exact meal needs a microwave or oven, its stated cooking time and its instructions for cooking from frozen. Lunch has to work with the appliance and time I have available.
Dietary requirements Check the exact product’s ingredients, allergen statement and vegetarian or vegan designation where relevant. A category label alone cannot tell me whether a meal meets my dietary requirements.

Common buying mistakes

  • Treating one front-of-pack claim as a verdict on the meal

    Action on Salt’s May 2025 audit of 1,511 chilled and frozen ready meals from 11 major UK retailers reported that 56% were high in salt, 42% high in saturated fat and 71% low in fibre. These are findings about the meals assessed, not about shoppers’ preferences or every frozen meal.

    For the meal you are considering, compare energy, salt, saturated fat, protein and fibre on the same portion basis.

  • Mixing up per-100g and per-pack figures

    A per-100g figure does not describe the whole lunch unless the portion you eat weighs 100g.

    Check the stated serving size and compare whole-pack or intended-portion figures when deciding between meals.

  • Overlooking where the meal will be cooked

    A frozen lunch is less practical if its required appliance or cooking time does not fit your break.

    Read the exact packet instructions before buying. GOV.UK advises following the cooking directions and checking that food is steaming hot throughout, including the middle.

  • Assuming a dietary category answers every nutrition question

    A vegetarian or vegan designation does not state the meal’s salt, saturated fat or full ingredient and allergen profile.

    Check the current pack’s dietary designation, ingredients, allergen statement and nutrition panel for the individual product.

Retailer ranges to explore

These retailer ranges can help you find meals to compare; a range name does not establish the portion size or nutrition of every product in it.

Tesco

Tesco lists frozen ready meals under categories including meals under 500 calories and free-from, vegetarian and vegan options.

  • Its product pages include serving-level nutrition examples: Tesco Health Chicken Curry and Rice lists 293 kcal, 17g protein, 4.9g fibre and 1.07g salt per prepared pack.
  • Check the current listing and pack for the particular meal’s availability, serving basis and cooking directions.

Sainsbury's

Sainsbury's lists frozen ready meals across several styles.

  • Its frozen range includes 400g Taste the Difference meals explicitly described as meals for one.
  • Use the individual product’s nutrition and ingredient information to compare meals, rather than treating the format as a nutrition claim.

Waitrose

Waitrose lists frozen ready meals, including Kirsty’s Frozen Vegetable Lasagne 325g.

  • The stated pack weight gives you a starting point for checking whether an individual product suits your lunch portion.
  • Confirm the serving count, nutrition and allergens on the specific product or pack.

M&S

M&S Food’s frozen ready-meal range has vegetarian and vegan filters.

  • M&S describes plant-focused dishes containing ingredients such as nuts, pulses and vegetables.
  • Check each product’s serving count and allergen statement; the range also includes larger dishes.

Iceland

Iceland lists frozen ready meals, including its MyProtein range.

  • Iceland states that dishes in its MyProtein range contain 19g to 60g protein; this is the retailer’s range description, not a figure for every frozen meal it sells.
  • Compare the exact meal’s serving size and complete nutrition panel before choosing it for lunch.

Joybuy lunch option

This chicken tikka pack is an option to assess for a frozen lunch. Confirm that its serving count, nutrition and cooking instructions suit how you plan to use it.

Myprotein Chicken Tikka 350g pack

Myprotein Chicken Tikka 350g

If you plan to eat this 350g pack for lunch, check its stated serving count and compare nutrition for the portion you will eat. Confirm the cooking instructions and allergens on the current pack.

View on Joybuy

Frequently asked questions

Does “high protein” tell me whether a frozen meal suits my lunch?

No. Compare protein for the portion you intend to eat alongside energy, salt, saturated fat and fibre. Check the ingredients and allergens if they matter to your choice.

How should I use a frozen meal’s traffic-light label?

Use each colour for the nutrient it describes: GOV.UK explains that green means low, amber medium and red high. Then check the full nutrition panel and portion size so you compare meals on the same basis.

Is a meal under 500 calories enough information to choose lunch?

No. Check whether the calorie figure covers the whole pack or a smaller serving, then compare salt, saturated fat, fibre and the ingredients against your preferences.

How should I cook a frozen ready meal?

Follow the instructions for that product and the appliance you are using. GOV.UK advises checking that food is steaming hot throughout, including the middle.

How do I check a frozen meal against a dietary or allergy requirement?

Read the current pack’s ingredients and allergen statement for the exact meal. A retailer category or dietary filter does not replace that product-level check.