1-First Step: Preheat Oven Preheat oven to 375 degrees F. Grease a 9×9 or equivalent oven-proof pan. This sets you up for even baking and easy release. Pro tip for busy parents: Do this while slicing veggies to save time.

2-Second Step: Layer Zucchini and Onions Overlap 1/3 of the 4 cups sliced raw zucchini and thin onion slices in the pan. Season with salt and pepper to taste, then sprinkle 1/2 cup shredded pepper jack cheese. Repeat two more times for three full layers, using all zucchini, onions, and cheese. Press down gently for compact layers this prevents gaps and ensures every bite is cheesy perfection. If adapting for students on a budget, these layers mimic potato au gratin but slash carbs.

3-Third Step: Prepare the Sauce Combine 1/2 teaspoon garlic powder, 2 tablespoons butter, 1/2 cup heavy whipping cream, and 1/4 teaspoon xanthan gum in a microwave-safe dish. Heat for one minute or until butter melts, then whisk until smooth. This quick sauce is keto magic, thickening without flour. For food enthusiasts, taste and adjust seasoning here.

4-Fourth Step: Pour and Bake Pour the smooth sauce over the zucchini layers, letting it seep in. Bake at 375 degrees F for about 45 minutes until the liquid thickens and the top turns golden brown. If it looks watery after 45 minutes, drop to 350 degrees F and cook another 10 minutes. My family anecdote: One time, I got distracted with kids’ homework, added those extra minutes, and it was even better crispier top!

5-Final Step: Serve Warm Serve warm, straight from the oven for maximum gooeyness. Pairs great with steak or roasted chicken, ideal for party hosts or newlyweds cooking together. Total time: 56 minutes (10 prep, 46 cook). Fresh assembly is best since zucchini can release liquid if made ahead.