← Back to Blog

Caramelized Onion and Brussels Sprout Heart Shaped Pizza — The Onions Reminded Me of Tuesday

Forty-eight on. The Monday-Tuesday shift was one of those stretches where the calls come steady and none of them are catastrophic but all of them are real — a kitchen fire in a duplex near Indian School where nobody was hurt but a woman stood in the street holding a photo album and crying, a medical call for an elderly man whose oxygen tank had run out, a car accident on the I-17 that tied up traffic for two hours and left a teenager with a broken arm and a look on his face that said he was just starting to understand that the world could touch him. You carry those faces home. You don't mean to but you do.

I cooked at the firehouse both days. Monday breakfast: chilaquiles with eggs over easy and a tomatillo salsa I made from scratch because the jarred stuff is an insult to tomatillos everywhere. Monday dinner: carne guisada — beef stewed slow with tomatoes and cumin and potatoes, served over rice. The guys ate it like they hadn't seen food in a week, which is how firefighters always eat, because the next call might come before you finish your plate and you learn early to eat like it matters. Tuesday lunch: smash burgers on the flat-top, double patties with American cheese and griddled onions, pickles, yellow mustard. Simple. Clean. The kind of food that doesn't ask anything of you except that you show up hungry.

Home on Wednesday and the quiet hit different. The house was empty for two hours — Jessica at work, kids at school — and I sat at the kitchen table with the business plan open on the laptop. I added a section on staffing. How many people does a BBQ restaurant need on a Saturday? How many on a Tuesday? What do you pay a line cook in Mesa in 2026? The numbers are real now. They used to be dreams dressed up as spreadsheets. Now they are spreadsheets dressed up as a future. I closed the laptop when I heard the bus.

Thursday night Roberto called. He does this — calls at eight, talks for exactly twelve minutes, asks about the kids, tells me something about the Diamondbacks that I already know, then says goodnight. But tonight he asked about the plan. "How's the blueprint, mijo?" I told him about the staffing section. He was quiet for a moment and then said, "You're going to need someone who doesn't complain about the heat." He meant himself. He has always meant himself.

The small firefighter-brotherhood continues. The small Station 19 crew has been the small extended-family for years. The small fire-academy-class-of-2005 brothers have been the small lifelong-network since Marcus was a small probationary. The small annual-charity-cookoff in October raises the small operating-budget for the small Phoenix Fire Foundation. Marcus has been the small head-pitmaster the last four years running.

Sofia is twelve, Diego is nine. The small Rivera-kids occupy the small Phoenix-house with the small two-parent-household-stability that the small Jessica-and-Marcus partnership has built. Sofia is at the small middle school and is the small soccer-and-studious one. Diego is at the small elementary and is the small dinosaur-obsessed wild one. Both small kids have small activities (Sofia on the small soccer-team, Diego on the small Little League team Marcus coaches).

The small Mexican-American heritage runs through the small kitchen. Roberto and Elena’s recipes are the small family-cooking-spine. The small carne asada, the small pollo asado, the small tamales-at-Christmas-with-Jessica’s-mom’s-cinnamon-rolls are the small heritage-anchors. Marcus’s parents Roberto and Elena are from Sonora-via-Maryvale-Phoenix. Jessica is from Duluth Minnesota. The small cross-Mexico-American kitchen draws from both.

Tuesday at the firehouse I griddled onions for the smash burgers — nothing fancy, just sliced thin on the flat-top with a little oil and salt, and they went sweet and jammy while the patties smashed down next to them, and I thought, as I always do when onions cook slow, that patience is the whole secret. When I got home Wednesday and the quiet settled in and Roberto’s voice was still in my head saying you’re going to need someone who doesn’t complain about the heat, I wanted something that rewarded that same patience — something you build with your hands. This pizza has been on rotation since Sofia was eight and decided it needed to be a heart shape every single time, and I am not going to argue with a twelve-year-old who is right.

Caramelized Onion and Brussels Sprout Heart Shaped Pizza

Prep Time: 20 min | Cook Time: 45 min | Total Time: 1 hr 5 min | Servings: 4

Ingredients

  • 1 lb store-bought or homemade pizza dough, room temperature
  • 2 tablespoons olive oil, divided, plus more for drizzling
  • 2 large yellow onions, halved and thinly sliced
  • 1/2 teaspoon kosher salt, plus more to taste
  • 1 teaspoon balsamic vinegar
  • 8 oz Brussels sprouts, trimmed and thinly sliced (about 2 cups)
  • 2 garlic cloves, minced
  • 1/2 teaspoon red pepper flakes
  • 1/2 cup whole-milk ricotta cheese
  • 3/4 cup shredded low-moisture mozzarella
  • 1/4 cup grated Parmesan
  • Freshly ground black pepper, to taste
  • Cornmeal, for dusting

Instructions

  1. Caramelize the onions. Heat 1 tablespoon olive oil in a wide skillet over medium-low heat. Add the sliced onions and 1/2 teaspoon salt. Cook, stirring every 5 minutes or so, for 35–40 minutes until deeply golden and jammy. Add the balsamic vinegar in the last 5 minutes and stir to coat. Remove from heat and set aside. Don’t rush this step — low and slow is the whole point.
  2. Prep the Brussels sprouts. While the onions cook, toss the shaved Brussels sprouts with the remaining 1 tablespoon olive oil, minced garlic, red pepper flakes, and a pinch of salt in a bowl. Set aside.
  3. Preheat the oven. Place a baking sheet or pizza stone in the oven and preheat to 475°F. Let it heat for at least 20 minutes so it’s good and hot when the pizza goes in.
  4. Shape the dough. Dust a sheet of parchment paper with cornmeal. Press and stretch the dough into a large heart shape roughly 12 inches across — use your hands, not a rolling pin, so it keeps some air in it. Sofia will correct you if the point at the bottom isn’t sharp enough.
  5. Build the pizza. Dollop the ricotta across the dough in small spoonfuls, then scatter the caramelized onions evenly. Top with the shaved Brussels sprouts, then the mozzarella and Parmesan. Drizzle lightly with olive oil and finish with black pepper.
  6. Bake. Carefully slide the parchment onto the hot baking sheet or stone. Bake for 13–15 minutes until the crust is golden on the edges and the cheese is bubbling with a few brown spots. The Brussels sprouts will crisp at the tips — that’s what you want.
  7. Rest and slice. Let the pizza rest for 3 minutes before slicing. This is harder than it sounds after a long shift.

Nutrition (per serving)

Calories: 420 | Protein: 18g | Fat: 16g | Carbs: 52g | Fiber: 5g | Sodium: 680mg

Marcus Rivera
About the cook who shared this
Marcus Rivera
Week 551 of Marcus’s 30-year story · Phoenix, Arizona
Marcus is a Phoenix firefighter, a husband, a dad of two, and the kind of guy who'd hand you a plate of brisket before he'd shake your hand. He grew up watching his father Roberto grill carne asada every Sunday in the backyard, and that tradition runs through everything he cooks. He's won a couple of local BBQ competitions, built an outdoor kitchen his wife calls "the altar," and feeds his fire crew on every shift. For Marcus, cooking isn't a hobby — it's how he shows up for the people he loves.

How Would You Spin It?

Put your own twist on this recipe — what would you add, remove, or swap?