Roast Garlic Mushroom Thyme

Featured in: Hearty Family Meals

This savory melt features rich roasted garlic combined with sautéed mushrooms and fragrant fresh thyme. Layered with melted Gruyère and mozzarella cheese between crisp, golden sourdough slices, it delivers a perfectly balanced flavor and texture. The garlic paste adds depth, while the buttery crust provides a satisfying crunch. Quick to prepare and ideal for a comforting meal, this dish highlights fresh ingredients and simple techniques.

Updated on Fri, 28 Nov 2025 09:13:00 GMT
Golden, melty Roast Garlic Mushroom & Thyme Grilled Cheese, oozing with cheese and mushrooms, ready to serve. Save to Pinterest
Golden, melty Roast Garlic Mushroom & Thyme Grilled Cheese, oozing with cheese and mushrooms, ready to serve. | honeyprairie.com

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

I first enjoyed this sandwich on a chilly evening and was amazed at how the simple ingredients came together for a comforting meal.

Ingredients

  • Garlic: 1 head
  • Mushrooms: 200 g (7 oz) cremini or button, sliced
  • Onion: 1 small yellow, thinly sliced
  • Thyme: 2 tbsp fresh 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
  • Olive oil: 2 tbsp
  • Salt and black 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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| honeyprairie.com

This sandwich has become a family favorite during our weekend brunches, always bringing smiles and full bellies.

Serving Suggestions

Serve with a simple green salad or tomato soup to balance the richness of the sandwich.

Substitutions

Swiss or Fontina cheese can be used instead of Gruyère and mozzarella for a different but delicious flavor profile.

Storage

Best enjoyed fresh but leftovers can be wrapped and refrigerated up to 2 days; reheat in a skillet for crispiness.

A close-up of a perfectly toasted Roast Garlic Mushroom & Thyme Grilled Cheese, showcasing its gooey cheese pull. Save to Pinterest
A close-up of a perfectly toasted Roast Garlic Mushroom & Thyme Grilled Cheese, showcasing its gooey cheese pull. | honeyprairie.com

This roast garlic mushroom grilled cheese is the perfect combo of comforts and sophistication for any casual meal.

Questions & Answers

How do I roast garlic properly?

Slice the garlic head’s top, drizzle with olive oil, wrap in foil, and roast at 200°C for 25–30 minutes until soft. Then mash into a paste.

What's the best way to get golden mushrooms?

Sauté sliced mushrooms over medium heat with olive oil, stirring occasionally until browned and excess moisture evaporates, about 6–8 minutes.

Can different cheeses be used for melting?

Yes, Swiss or Fontina cheeses are good alternatives to Gruyère and mozzarella for a creamy melt.

How should the sandwich be cooked for best texture?

Grill over medium-low heat with butter spread outside, pressing gently, until bread is golden and cheese melts, about 3–4 minutes per side.

Any tips to enhance mushroom flavor?

Add a splash of balsamic vinegar while sautéing mushrooms to deepen the flavor profile.

Roast Garlic Mushroom Thyme

Savory roast garlic and mushroom melt with thyme and melted cheese on crispy golden bread.

Prep duration
15 minutes
Cook duration
20 minutes
Overall time needed
35 minutes
Recipe by Honey Prairie Abigail Greene


Skill Level Easy

Cuisine type American

Makes 2 Number of portions

Diet specifications Meatless

What You'll Need

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)

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 and freshly ground black pepper, to taste

How to Make It

Step 01

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

Step 02

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

Step 03

Prepare bread: Spread roasted garlic paste evenly onto one side of each bread slice.

Step 04

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

Step 05

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

Step 06

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

Step 07

Serve: Slice sandwiches and serve hot.

Essential tools

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

Allergy Details

Go through all ingredients to spot potential allergies. If unsure, check with a health expert.
  • Contains dairy (cheese, butter) and wheat (bread). May contain gluten; verify ingredients if gluten-sensitive.

Nutrition details (per portion)

Details for informational use only — not a substitute for a medical professional.
  • Energy (calories): 480
  • Lipids: 27 g
  • Carbohydrates: 38 g
  • Proteins: 21 g