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SHIFT Grub

Mustard tuna rice lunch bowl — tomato salsa

Mustard tuna rice lunch bowl — tomato salsa. Ingredients, step-by-step method and estimated nutrition per serving. Save your food plans in My Timber.

By Shift Some Timber editorial team · Published · Updated 2 November 2026

Makes 1 servings · About 45 minutes

Ingredients

  • 120g tuna in spring water, drained
  • 75g brown rice, dry
  • 90g mixed peppers
  • 90g sweetcorn
  • 3.75g wholegrain mustard
  • 11.25g tomato salsa
  • 4.6g olive oil

Equipment

  • hob
  • non-stick frying pan
  • knife
  • chopping board
  • spatula
  • kitchen scales
  • saucepan
  • colander
  • bowl
  • spoon

Method

  1. Start the measured dry rice first, using the water quantity and cooking time on its packet. Brown rice commonly takes25–35 minutes; this recipe does not claim microwave-pouch timing.
  2. Use ready-to-eat tuna in spring water, drained. Drain canned tuna before weighing; keep ready-to-eat fillings refrigerated until needed. Do not start this method with raw meat.
  3. Wash and chop the vegetables. Drain canned sweetcorn or pulses. Mix the measured dressing, oil and flavourings; use ready-to-eat condiments or cook and safely cool a sauce that requires it.
  4. For immediate serving, combine the cooked grain or pasta with the filling and dressing and eat now. For a packed lunch, cool the starch promptly before combining with chilled fillings and vegetables. Keep the meal chilled until eating; the original cooking clock is not restarted.

Estimated nutrition

Per serving
Energy545.6 kcal
Protein40.1 g
Carbohydrate77.8 g
Fat10.2 g
FibreNot available
Saturates1.8 g

Estimated per-serving nutrition. Ingredient weights multiplied by CoFID 2021 or explicitly named UK product-label values, preserving missing values; traces treated as zero. Declared product/cooked-state proxies remain estimates. AI author calculation, not independent human, clinical or physical cooking validation.

Allergens and product labels

Food safety and storage

Author estimates, not physical cooking trials. Packet instructions and safe doneness govern; larger batches need longer.