Tuna and tomato rice soup

Tender potato, spinach, and feta make a stovetop frittata with no separate vegetable pan.

This recipe makes 4 servings and takes about 15 minutes to prepare plus 25 minutes to cook. Metric and imperial quantities are alternate measurements, so use one system rather than adding both. If you change the yield, keep the pan size and thickness of the food in mind: a crowded pan steams food and a deep baking dish can extend the cooking time.

Equipment

Set out 26 cm oven-safe lidded frying pan, mixing bowl, spatula. A wide pan gives moisture somewhere to evaporate; for an oven dish, leave space between pieces so heat can circulate. Use separate board and knife surfaces for raw protein and foods that will be eaten without further cooking.

Ingredients

You will need: potatoes, diced: 500 g (1 lb 2 oz); olive oil: 15 ml (1 tbsp); large eggs: 8 (8); baby spinach: 150 g (5 oz); feta, crumbled: 150 g (5 oz); ground nutmeg: 1 g (¼ tsp). Gather the ingredients before heating the pan so the aromatics do not burn while a measurement is being found.

• potatoes, diced — 500 g / 1 lb 2 oz
• olive oil — 15 ml / 1 tbsp
• large eggs — 8 / 8
• baby spinach — 150 g / 5 oz
• feta, crumbled — 150 g / 5 oz
• ground nutmeg — 1 g / ¼ tsp

Method

Read the full method once, then prepare the ingredients in the order listed. Keep raw and ready-to-eat ingredients separate, and wash hands and equipment after raw-protein contact.

Step 1

Heat the olive oil in the covered pan. Cook the potatoes over medium-low heat for 15 minutes, stirring occasionally, until tender and lightly golden.

Step 2

Add the baby spinach and stir until wilted. Beat the eggs with nutmeg and two-thirds of the feta.

Step 3

Pour the egg mixture into the pan, scatter over the remaining feta, cover, and cook on low for 7 to 9 minutes until the edges and centre are set.

Step 4

Rest for 5 minutes before slicing so the feta and egg hold together.

Cooking and safety check

Egg must be set throughout with no wet, uncooked centre. A time estimate and a browned surface do not prove that the centre is cooked. Use a suitable food thermometer where the ingredient or local guidance requires one, and follow the package or official instructions for the specific food.

Substitutions that respect the dish

A substitution should preserve the recipe’s job, not merely its colour. Goat's cheese replaces feta but still contains milk. Use kale, steamed until tender, instead of spinach. Cooked sweet potato can replace potato. Nutmeg may be omitted.

• Goat's cheese replaces feta but still contains milk.
• Use kale, steamed until tender, instead of spinach.
• Cooked sweet potato can replace potato.
• Nutmeg may be omitted.

Allergen notes

This recipe contains or may contain milk, egg. Check every packaged ingredient because formulations and cross-contact warnings vary.

Common mistakes and how to correct them

Use one troubleshooting change at a time. If the centre is undercooked, return it to the appropriate heat and check again rather than relying on the outside colour. If the pan is dry, add liquid gradually; if it is watery, reduce uncovered. Texture may also reflect crowded equipment, a different ingredient size, or a changed batch quantity.

• Use a lid to set the top without burning the base.
• If potatoes stick, add 15 ml (1 tbsp) olive oil before continuing.
• Drain wet spinach well to avoid a watery frittata.

Leftovers and storage

Chill within 2 hours and refrigerate for up to 2 days. Reheat covered in a low oven until steaming.

Serving ideas

These sides and finishes suit tuna and tomato rice soup without changing the recipe itself.

• Lemon-dressed lettuce
• Olives
• Roasted tomatoes

Frequently asked questions

Can I bake it?

Yes, bake at 180°C/355°F until fully set.

Is feta salty?

Usually, so taste before adding salt.

Related recipes and tools

Browse the related recipes for a different appliance, pace, or ingredient pairing. Use the serving scaler only after checking the stated yield, and use the storage guide before deciding whether to save a portion. Related links help with the next decision; they do not make this recipe suitable for every diet or kitchen.

How this route differs from the closely related record

This one-pot recipe is the tuna-and-rice route, rather than the rice-and-vegetable route. Compare the linked record only when its named food state, ingredient role, or recipe ingredient and method matches the decision in front of you.