Who is choosing?

Calorie-conscious festival diners

If you want a convenient frozen main for yourself, compare calories for the serving you expect to eat rather than relying on a category label.

Protein-focused single-portion shoppers

If protein matters to your choice, compare it alongside calories, vegetables, salt and allergens on the exact meal’s label. A protein claim does not tell you the meal’s calorie content.

Hosts buying food to share

For a small gathering, keep individually portioned meals distinct from party food or sharing dishes. The calories each guest eats depend on the amount served.

What should you check?

Start with the portion and its calories, then check the rest of the label and the practicalities of storing and cooking the food.

Priority What to check Your needs
Portion and calories Find the kcal per stated serving and compare it with the amount you intend to eat. Use per-100g figures when comparing different pack sizes. I want to know the calories in my meal, not just in a smaller serving shown on the pack.
Wider nutrition Check salt and saturated fat for the serving; compare the per-100g figures and any traffic-light labels. Check fibre where it is listed. A lower calorie figure alone is not enough for me to choose between meals.
Ingredients and allergens Read the ingredients, allergen statement and any “may contain” warning on the current pack. When I am serving guests, I need to check each meal against their dietary requirements.
Storage and cooking Check freezer space, the cooking method and the pack instructions against the equipment available when you will serve the meal. I need to be able to keep the food frozen and cook it where we are eating.
Sharing portions Check how many servings a sharing pack states, then compare that with the portions you plan to serve. For a gathering, I want to judge each person’s portion rather than treat the whole dish as one meal.

Common buying mistakes

  • Choosing by calories alone

    A lower-energy meal can still have substantial salt or saturated fat. In its May 2025 ready-meal assessment, Action on Salt & Sugar reported that 56% of meals assessed were high in salt, 42% high in saturated fat and 71% low in fibre; these figures describe products, not shoppers’ preferences.

    Compare calories, salt and saturated fat for the serving you will eat, and check fibre where it is listed.

  • Treating a range label as the meal’s full nutrition information

    An under-500-calorie category can help narrow a search, while a protein-focused range identifies a different attribute. Neither tells you everything about an individual meal’s ingredients or nutrition.

    Read the exact product’s nutrition panel and allergen statement before choosing it.

  • Relying on an older online allergen listing

    Ingredients and allergy advice can change. Iceland advises shoppers to read the actual product label rather than rely solely on its online food information.

    Check the current pack before cooking or serving food to anyone with an allergy or dietary restriction.

Brand and range references

These UK ranges offer different places to browse; a range description does not establish the nutrition or suitability of every meal in it.

Tesco

Tesco’s frozen ready-meal category includes an “Under 500cal Meals” browsing option.

  • The filter can narrow a search for an individual meal.
  • Check the chosen pack’s serving size, full nutrition information, ingredients and allergens.

Waitrose

A Waitrose listing for the Birds Eye Get Real Protein Mexican Style Chicken Burrito Bowl states 373 kcal and 35 g protein per microwaved serving.

  • The same listing states 1.60 g salt per serving, allowing protein and calories to be considered alongside salt.
  • It also lists possible milk and wheat allergens; check the current pack and availability before planning around this particular bowl.

M&S

M&S presents frozen ready meals and party food for gatherings.

  • The range provides options to consider when feeding several people.
  • For a calorie comparison, check the individual dish’s label and the portions you intend to serve.

Iceland

Iceland describes its MyProtein range as high-protein meals cooked from frozen.

  • The range may be a starting point if protein is one of your selection criteria.
  • Check calories and the wider nutrition panel on each meal; Iceland advises checking the actual pack for current ingredients and allergy information.

Joybuy product option

This vegetarian noodle option is relevant if you can cook from frozen and want to decide your own portion for a festival meal.

7FRESH Private Chef Luohan Zhai Vegetarian Noodles, three 660 g packs

7FRESH Private Chef Luohan Zhai Vegetarian Noodles, 660g × 3

For an individual festival meal, decide how much of a 660g pack you will eat before comparing its calories with another option. The bundle contains three packs, totalling 1.98kg; check the current nutrition and allergen labels, cooking directions and whether boiling equipment will be available.

View on Joybuy

Frequently asked questions

Does a lower calorie figure tell me everything I need to know about a frozen meal?

No. It tells you about energy on the stated serving basis, not the meal’s salt, saturated fat, fibre or allergens. Compare those details on the same product label.

Should I compare calories per 100g or per serving?

Use the per-serving figure to assess the amount you expect to eat, and per-100g figures to compare products with different pack or serving sizes. Check whether your portion matches the serving stated on the label.

Does a high-protein label mean a meal has fewer calories?

No. Protein and calories are separate figures. For example, Waitrose lists the Birds Eye Get Real Protein Mexican Style Chicken Burrito Bowl at 35 g protein and 373 kcal per microwaved serving, alongside 1.60 g salt; compare all three figures for that particular bowl.

What should I check before cooking a frozen meal for a festival?

Check that you can store it as directed and have the equipment needed for the exact pack’s cooking instructions. Cooking steps and times can differ between meals and appliances.

Can I rely on online allergen details when serving guests?

Check the current physical pack before serving. Iceland notes that ingredients and allergy advice published online can change, so an earlier listing should not replace the label on the food you bought.