Need a quick dinner idea? As a busy home cook who's relied on this recipe for years, I can vouch for its simplicity and savings.
This grilled Gruyère baguette is my go-to: effortless, fast, and incredibly economical. Just toasted baguette, melty cheese, and fresh tomatoes make a satisfying meal in minutes.
I've made it countless times with pantry staples or leftovers, keeping my family happy and my budget intact.
Here's my trusted recipe for these irresistible grilled sandwiches:

For 4 people - Preparation: 10 mins
- 1 baguette
- 200 g grated Gruyère
- 2 tomatoes
- 1 tablespoon mustard
- 1 tablespoon mayonnaise
- Salt & pepper
1. Preheat oven to 180°C.
2. Wash, seed, and chop the tomatoes.

3. Slice baguette in half lengthwise, then into four pieces.
4. In a bowl, mix grated cheese, tomatoes, mustard, and mayonnaise. Season with salt and pepper.

5. Spread mixture on baguette pieces and place on a baking sheet.
6. Bake for 5 minutes until golden and bubbly.
Your grilled Gruyère sandwiches are ready! Serve hot with lettuce or grated carrots for balance.
Perfect for unexpected guests or casual TV dinners – quick, handheld, and delicious.
Great for using up stale bread too, and one of the most wallet-friendly recipes in my repertoire.
Cheese lover? Swap Gruyère for Comté, goat cheese, or Roquefort for variety.
Last time, I wowed guests by serving assorted cheese-topped slices over salad – a hit every time!
- 1 baguette: €0.90
- 200 g grated Gruyère: €6.33/kg = €1.26
- 2 tomatoes: ~240 g at €2.50/kg = €0.60
Total: €0.69 per person or €2.76 for 4.
Try this easy recipe and share your results in the comments – I'd love to hear how it turned out!