Herb Spinanch Bake

A big-batch spinach casserole that doubles as a side dish or a light main. Frozen chopped spinach gets mixed with cooked rice, a full pound of cheddar, beaten eggs, milk, butter, and thyme, then baked until set.

The eggs and milk create a custard-like base that binds the rice and spinach together while the cheddar melts through everything. Worcestershire sauce is the quiet workhorse here, adding a savory, umami depth that lifts the whole dish above a basic spinach-and-cheese side.

It bakes covered first, then uncovered for the last 5 minutes to set the top and give it a slightly firmer surface.

Pro Tips

• Squeeze the spinach bone dry after cooking. Excess water is the number one reason casseroles like this turn watery instead of holding together cleanly.
• Use a pound of sharp cheddar, not mild. The sharp flavor stands up to the spinach and thyme better.
• Let it rest 5-10 minutes after baking before cutting. The eggs finish setting as it cools and the slices hold together.
• This reheats well. Cover and microwave individual portions, or reheat the whole pan at 325°F (165°C) for 15 minutes.

Variations

• Swap rice for cooked orzo or small pasta for a different texture.
• Add crumbled cooked bacon or diced ham for a heartier version.
• Use Swiss or Gruyere cheese instead of cheddar for a more French-leaning flavor.