Roast Garlic Mushroom Thyme

Featured in: Vegetarian Favorites

This savory grilled cheese highlights the rich flavors of roasted garlic mashed into a paste and sautéed mushrooms infused with fresh thyme. Layers of Gruyère and mozzarella melt perfectly between slices of crisp sourdough bread, creating a gooey, golden exterior. The preparation combines roasting, sautéing, and grilling to build complex textures and aromas in about 35 minutes. Ideal for a comforting vegetarian main, it pairs well with green salad or tomato soup for a complete meal.

Updated on Fri, 28 Nov 2025 13:06:00 GMT
Golden-brown Roast Garlic Mushroom & Thyme Grilled Cheese, oozing with melted Gruyère and mozzarella. Save
Golden-brown Roast Garlic Mushroom & Thyme Grilled Cheese, oozing with melted Gruyère and mozzarella. | whisknjoy.com

A decadent grilled cheese sandwich featuring savory roasted garlic, sautéed mushrooms, fresh thyme, and gooey melted cheese on crispy golden bread.

Ingredients

  • Garlic: 1 head
  • Mushrooms: 200 g (7 oz) cremini or button mushrooms, sliced
  • Onion: 1 small yellow onion, thinly sliced
  • Thyme: 2 tbsp fresh thyme leaves (or 1 tsp dried)
  • Gruyère cheese: 120 g (4 oz), grated
  • Mozzarella cheese: 120 g (4 oz), grated
  • Unsalted butter: 2 tbsp, softened
  • Bread: 4 slices sourdough or country bread
  • Olive oil: 2 tbsp
  • Salt and pepper: to taste

Instructions

Step 1:
Preheat oven to 200°C (400°F). Slice the top off the garlic head, drizzle with 1 tsp olive oil, wrap in foil, and roast for 25 30 minutes until soft. Squeeze out the cloves and mash into a paste set aside.
Step 2:
Heat 1 tbsp olive oil in a skillet over medium heat. Add the onions and cook for 2 3 minutes until softened. Add mushrooms and thyme, season with salt and pepper, and sauté for 6 8 minutes until mushrooms are golden and any liquid has evaporated. Transfer to a plate.
Step 3:
Spread roasted garlic paste evenly onto one side of each bread slice.
Step 4:
Layer half the cheese mixture on two slices of bread (garlic side up), top with the mushroom mixture, then the remaining cheese. Cover with the remaining bread slices, garlic side down.
Step 5:
Spread butter on the outside of each sandwich.
Step 6:
Heat a clean skillet over medium low. Grill sandwiches 3 4 minutes per side, pressing gently, until bread is golden and cheese is melted.
Step 7:
Slice and serve hot.
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| whisknjoy.com

Crispy sourdough slices encase a savory Roast Garlic Mushroom & Thyme Grilled Cheese, perfect for lunch. Save
Crispy sourdough slices encase a savory Roast Garlic Mushroom & Thyme Grilled Cheese, perfect for lunch. | whisknjoy.com

Recipe FAQ

How do I roast garlic evenly?

Slice the garlic head's top, drizzle with olive oil, wrap in foil, and roast at 200°C (400°F) for 25–30 minutes until soft and fragrant.

What mushrooms work best for this dish?

Cremini or button mushrooms yield a tender, earthy flavor that complements the garlic and thyme perfectly.

Can I substitute the cheeses?

Gruyère and mozzarella blend well, but Swiss or Fontina are excellent alternatives for similar melt and taste.

How to achieve crispy bread crust?

Butter the outside slices generously and grill on medium-low heat, pressing gently until golden brown on both sides.

Any tips to enhance mushroom flavor?

Adding a splash of balsamic vinegar during sautéing deepens the savory profile without overpowering.

Roast Garlic Mushroom Thyme

Decadent grilled sandwich featuring roasted garlic, mushrooms, thyme, and melted cheese on crispy bread.

Prep duration
15 min
Cook duration
20 min
Complete duration
35 min
Created by Sophia Turner

Classification Vegetarian Favorites

Skill Level Easy

Cultural Background American

Output 2 Portion Count

Dietary considerations Meat-Free

Components

Vegetables

01 1 head garlic
02 7 oz cremini or button mushrooms, sliced
03 1 small yellow onion, thinly sliced
04 2 tbsp fresh thyme leaves or 1 tsp dried thyme

Dairy

01 4 oz Gruyère cheese, grated
02 4 oz mozzarella cheese, grated
03 2 tbsp unsalted butter, softened

Bread

01 4 slices sourdough or country bread

Condiments & Seasonings

01 2 tbsp olive oil
02 Salt, to taste
03 Freshly ground black pepper, to taste

Preparation Steps

Stage 01

Roast garlic: Preheat oven to 400°F. Slice the top off the garlic head, drizzle with 1 tsp olive oil, wrap in foil, and roast for 25 to 30 minutes until soft. Squeeze out cloves and mash into a paste; set aside.

Stage 02

Sauté vegetables: Heat 1 tbsp olive oil in a skillet over medium heat. Cook onions for 2 to 3 minutes until softened. Add mushrooms and thyme; season with salt and pepper. Sauté for 6 to 8 minutes until mushrooms are golden and liquid evaporates. Transfer to a plate.

Stage 03

Prepare bread with garlic: Spread the roasted garlic paste evenly on one side of each bread slice.

Stage 04

Assemble sandwiches: Divide half the cheese mixture between two bread slices, garlic side up. Top with mushroom mixture, then remaining cheese. Cover with remaining bread slices, garlic side down.

Stage 05

Butter bread exterior: Spread softened butter on the outside of each sandwich.

Stage 06

Grill sandwiches: Heat a clean skillet over medium-low heat. Grill sandwiches 3 to 4 minutes per side, pressing gently, until bread is golden and cheese is melted.

Stage 07

Serve: Slice sandwiches and serve hot.

Necessary tools

  • Oven
  • Skillet
  • Knife
  • Cutting board
  • Cheese grater
  • Foil

Allergy details

Review all ingredients for potential allergens and consult with healthcare professionals if you're unsure about any item.
  • Contains dairy (cheese, butter) and wheat (bread). May contain gluten; verify labels if gluten-sensitive.

Nutritional content (each portion)

These values are provided as estimates only and shouldn't replace professional medical guidance.
  • Energy: 480
  • Fats: 27 g
  • Carbohydrates: 38 g
  • Proteins: 21 g