πŸ† Amazon Best Seller Etekcity Food Scale β€” the #1 companion to AI nutrition tracking Β· Check price on Amazon β†’ Affiliate link
Home / Learn / Tuna-Stuffed Bell Peppers with Brown Rice and Corn

Tuna-Stuffed Bell Peppers with Brown Rice and Corn

Pasindu Wanniarachchi Β· 1 min read Β· Updated September 3, 2026

These tuna-stuffed bell peppers are an exceptional, macro-friendly meal-prep staple that delivers high protein, balanced complex carbohydrates, and lasting satiety without a heavy calorie count. Each vibrant pepper acts as a natural baking vessel, packed with a savory, protein-dense mixture of flaky canned tuna, nutty brown rice, sweet corn, and a smart swap of protein-rich Greek yogurt in place of traditional mayonnaise for a creamy texture with a fraction of the fat.

From a nutritional perspective, this dish provides an efficient blend of lean seafood protein and essential omega-3 fatty acids, which support heart health and cognitive function. The inclusion of whole-grain brown rice and fiber-rich bell peppers ensures a steady release of energy, preventing midday blood sugar spikes. They are robust, highly portable, and hold up exceptionally well in the refrigerator, making them a practical, no-fuss grab-and-go option for busy weekdays.

Meal Prep & Storage Tips

  • Refrigeration: Store the assembled and baked stuffed peppers in a sealed airtight container in the fridge for up to 4 days. The sturdy structure of the bell pepper holds its shape well, ensuring the filling stays intact.
  • Reheating: Reheat thoroughly in the microwave for 1 to 2 minutes, or warm them in a conventional oven at 180Β°C for about 10 minutes until heated all the way through.
  • Freezing: While you can freeze stuffed peppers for up to 2 months, bell peppers tend to release water when thawed, making the final texture softer. For optimal taste and structural integrity, enjoying them fresh from refrigerated storage is strongly recommended.
⏱️
15 minPrep Time
πŸ”₯
30 minCook Time
🍽️
4Servings
πŸ“Š
EasyDifficulty

Nutrition Per Serving

370Calories
36gProtein
38gCarbs
7gFat

Ingredients

  • 4 large bell peppers (any colour), tops cut off and seeds removed
  • 3 cans (135g each) tuna in water, drained
  • 200g cooked brown rice (approx. 80g dry)
  • 160g canned or frozen sweetcorn, drained
  • 120g plain non-fat Greek yogurt
  • 1 tbsp Dijon mustard
  • 1 tbsp lemon juice
  • 2 cloves garlic, minced
  • 3 spring onions, finely sliced
  • 1 tsp smoked paprika
  • Β½ tsp black pepper
  • Β½ tsp salt
  • 40g reduced-fat cheddar cheese, grated
Glass Meal Prep Set (5-pack)
πŸ“¦ Great for Meal Prep
Glass Meal Prep Set (5-pack)

Divided, leak-proof, microwave-safe containers for grab-and-go lunches.

Instructions

  1. Preheat your oven to 200Β°C (180Β°C fan / 400Β°F). Slice the tops off the bell peppers, remove the seeds and membranes, and place them cut-side up in a baking dish. Lightly season the inside of each pepper with a pinch of salt.
  2. If you haven't already cooked the brown rice, do so now according to packet instructions, then set aside to cool slightly.
  3. In a large bowl, combine the drained tuna, cooked brown rice, sweetcorn, Greek yogurt, Dijon mustard, lemon juice, minced garlic, spring onions, smoked paprika, salt, and black pepper. Mix well until everything is evenly combined.
  4. Taste the filling and adjust seasoning if needed β€” add more lemon juice for brightness or paprika for extra smokiness.
  5. Divide the tuna filling evenly between the 4 prepared bell peppers, pressing it down gently to pack it in. Top each pepper with grated cheddar cheese.
  6. Pour about 60ml (ΒΌ cup) of water into the base of the baking dish β€” this creates steam and helps the peppers soften without drying out. Cover the dish tightly with foil.
  7. Bake for 20 minutes covered, then remove the foil and bake for a further 10 minutes until the cheese is melted and golden and the peppers are tender.
  8. Remove from the oven and let the peppers rest for 5 minutes before serving. For meal prep, allow to cool fully before transferring to airtight containers β€” refrigerate for up to 4 days.

Kitchen Gear for Tuna-Stuffed Bell Peppers with Brown Rice and Corn

ProductBest ForRatingPrice
Glass Meal Prep Set (5-pack)
Editor's Pick

Glass Meal Prep Set (5-pack)

Portioning bowls for the week β˜…β˜…β˜…β˜…β˜… 4.8 $22.99 View β†’
Etekcity Food Scale

Etekcity Food Scale

Precise portion tracking β˜…β˜…β˜…β˜…β˜… 4.7 $39.99 View β†’
Cast Iron Skillet, 12"

Cast Iron Skillet, 12"

Searing chicken evenly β˜…β˜…β˜…β˜…β˜… 4.9 $29.90 View β†’
Glass Meal Prep Set (5-pack)
Editor's Pick
Glass Meal Prep Set (5-pack)
β˜…β˜…β˜…β˜…β˜… 4.8 Β· $22.99
View β†’
Etekcity Food Scale
Etekcity Food Scale
β˜…β˜…β˜…β˜…β˜… 4.7 Β· $39.99
View β†’
Cast Iron Skillet, 12"
Cast Iron Skillet, 12"
β˜…β˜…β˜…β˜…β˜… 4.9 Β· $29.90
View β†’
Pasindu Wanniarachchi

Pasindu Wanniarachchi is a senior web developer with over a decade of experience building digital platforms. As the creator of Nutrients Calculator, he combines his full-stack technical expertise with a focus on developing accessible, AI-powered health and nutrition tools.