Croque Madame Breakfast Casserole
This Croque Madame Breakfast Casserole layers day-old baguette with ham, Gruyère cheese, and a rich egg custard to recreate the French sandwich as an easy, make-ahead breakfast dish that serves a crowd.
This Croque Madame Breakfast Casserole layers day-old baguette with ham, Gruyère cheese, and a rich egg custard to recreate the French sandwich as an easy, make-ahead breakfast dish that serves a crowd.

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Spray a Suvie pan with cooking spray. Cut baguette in half lengthwise. Butter one side of the baguette and spread Dijon mustard along the other.
Slice baguette into ½" pieces. Place baguette pieces and deli ham in a greased Suvie pan (you may not be able to fit entire baguette into Suvie pan).
Sprinkle Gruyère cheese over the baguette and ham.
In a large bowl, whisk together whole milk, half and half, eggs, egg yolks, salt, and ground pepper. Carefully pour the mixture over the bread in the pan. Top with parmesan cheese.
Allow the casserole to rest for at least 30 minutes. Insert pan into the bottom zone of Suvie, input settings, and cook now or schedule. Bottom Zone: Slow Cook Low 1 hour and 30 minutes
After the cook, broil the casserole for 5 minutes or until cheese is browned. Remove pan from Suvie. Cut casserole into pieces and serve with a sprinkle of fresh herbs.
Cover and refrigerate up to 3 days. Reheat gently in a 325°F oven for 15–20 minutes until warmed through.
Yes. Assemble the casserole, cover, and refrigerate up to 12 hours. Bake directly from cold, adding 5–10 minutes to the baking time.
Use thin-sliced deli ham or French jambon de Paris. Avoid thick-cut ham or bacon; the thin slices are essential for even cooking.
Yes. Swiss, Emmental, or aged Cheddar work well. Avoid pre-shredded cheese if possible, as it contains anti-caking agents that affect texture.
The custard should be set but still slightly jiggly in the very center. The top should be golden brown, about 40–45 minutes at 350°F.
Day-old baguette is strongly recommended because it absorbs the custard without becoming mushy. Fresh baguette will break down too quickly.

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