Roasted Vegetable and Halloumi Tray

Why this works for founders

Halloumi is the rare cheese with a melting point high enough to roast or grill without losing shape. It adds protein and salt; the veg add fibre, polyphenols, and prebiotic carbohydrates that feed gut bacteria. Cruciferous vegetables (cauliflower) contain glucosinolates that convert to sulforaphane, the same compound flagged by the Stanford Huberman lab in cellular-stress discussions.

Ingredients (2 servings)

• 1 small cauliflower, cut into florets
• 1 red bell pepper, sliced
• 1 yellow bell pepper, sliced
• 1 red onion, cut into wedges
• 1 block (225g) halloumi, cut into 1cm slabs
• 3 tbsp olive oil
• 1 tsp smoked paprika
• 1 tsp ground cumin
• Salt, black pepper
• A handful of fresh parsley
• A squeeze of lemon

Steps

1. Heat oven to 220°C / 425°F.
2. Toss cauliflower, peppers, onion with 2 tbsp olive oil, paprika, cumin, salt, pepper. Spread on a sheet pan.
3. Roast 20 min.
4. Push veg aside. Add halloumi slabs to the pan. Drizzle with remaining oil. Roast 10 more min until halloumi is golden.
5. Plate. Scatter parsley, squeeze lemon over.

Macros per serving (approx)

• Calories: 560
• Protein: 28g
• Fat: 38g
• Carbs: 28g

Founder note

If you want this to serve 3 instead of 2, add a tin of chickpeas to the tray for the second roast stage — they crisp up around the halloumi.

The deeper logic

Halloumi (a Cypriot semi-hard cheese, traditionally made from a
goat-and-sheep milk blend) is one of the few cheeses that holds its
shape under direct high heat. The high melting point — roughly 100
C / 212 F before it collapses — comes from the rennet treatment
and the relatively low water content. This makes halloumi the
go-to vegetarian protein for sheet-pan cooking where most cheeses
would melt into a puddle.

The protein content is high: roughly 22 g per 100 g. The fat
content is also high — 25 g per 100 g — which makes halloumi a
satiating addition to vegetable-forward meals without
supplementation.

The downside is sodium: halloumi traditionally runs 1.5 to 2.5
percent salt by weight (depending on brand). This is significantly
more than most cheeses and meaningful in the context of a daily
sodium budget. Two 100 g servings per week is a reasonable
ceiling.

The roasted vegetable contribution is the seasonal flex. The
recipe is engineered around root vegetables in autumn-winter
(beets, carrots, parsnips, sweet potato), zucchini and tomatoes in
summer, brussels sprouts and squash in cold months. The technique
is the same; the produce rotates.

Why this is a meatless-Monday dinner

The "Meatless Monday" framing is somewhat marketing-driven, but
the underlying nutritional case for one to two meatless dinners
per week is well supported. Replacing animal protein with a
combination of legumes, dairy, and vegetables shifts the
saturated fat down, the fiber up, and the cost down.

Halloumi is the bridge cheese for someone who finds purely
vegetarian dinners unsatisfying. The protein content and the
mouthfeel both read as "main course" rather than "side dish."

Substitutions

• No halloumi: paneer (Indian curd cheese, similar high-heat
  tolerance, lower salt), feta (will melt — add at the end),
  or firm tofu cubed and pan-seared separately.
• No specific vegetables: any sturdy roasting vegetable. The
  key is matching cook times — root vegetables and
  brussels sprouts roast for 30 to 40 minutes; zucchini and
  cherry tomatoes for 20 to 25.
• No olive oil: any high-heat oil — avocado oil, refined
  coconut oil. Avoid butter for the high-temperature roast.
• No honey-and-mustard glaze: plain salt and pepper, or a
  drizzle of balsamic at the end.

Storage detail

The whole tray holds 3 days refrigerated. The halloumi firms up
significantly in the fridge; the texture suffers on reheating.
Eat fresh when possible; cold leftovers work over a salad.

The vegetables alone (no halloumi) hold 5 days and reheat well.
Make a large tray Sunday; pull halloumi servings as needed; the
roasted vegetables become the base for grain bowls through the
week.

Common mistakes

• Halloumi cubes too small. Quarter-inch cubes burn before the
  vegetables are done; half-inch cubes hold heat and time
  correctly. Cube; do not slice.
• Crowding the pan. The vegetables steam instead of roast. Use
  two pans if you scale up.
• Skipping the parboil of dense root vegetables. Beets, sweet
  potato, and parsnips benefit from a 5-minute parboil before
  roasting; the texture is more even.

The meatless-Monday dinner that doesn't apologize. One sheet pan,
40 minutes, four servings. The week starts in the right gear.