Step 1: Sauté the Onion
Heat 1 tablespoon of olive oil in your large skillet over medium heat. Add the finely chopped red onion and sauté until it turns translucent — about 3–4 minutes. Don't rush this step. Properly sautéed onion builds the flavor base for everything that follows.
Step 2: Add Garlic and Bouillon
Add the finely chopped garlic and crumble in the vegetable bouillon cube. Sauté for about 1 minute, stirring constantly so the garlic doesn't burn. The bouillon cube dissolves into the oil and coats everything with savory depth — this is what makes the orzo taste rich without needing stock on hand.
Step 3: Cook the Mushrooms
Add the sliced button mushrooms and sauté on medium-high heat for 2–3 minutes. The mushrooms will start releasing moisture — that's exactly what you want. Keep the heat up so they sauté rather than steam. Soggy mushrooms are a vibe nobody asked for.
Step 4: Add the Peas
Add the green peas and cook until both the peas and mushrooms are cooked through — another 2–3 minutes. At this point your pan smells incredible and you'll be tempted to just eat it like this. Resist.
Step 5: Build the Sauce
Add the pasta sauce, red chili flakes, dried oregano, ground black pepper, and salt. Stir everything together and cook for 1 minute. Taste the base at this point — adjust salt carefully because the pasta sauce already carries some sodium.
Step 6: Toast the Orzo
Add the uncooked orzo directly to the pan and stir it into the sauce and vegetables. Cook for 1–2 minutes without adding water yet. This step toasts the orzo slightly and helps it absorb the sauce flavor from the very start — a small move that makes a big difference.
Step 7: Cook the Orzo in the Pan
Add 5 cups of water and stir everything together. Cook uncovered on medium heat for 10–12 minutes, stirring regularly to prevent sticking. The orzo absorbs the liquid and swells up into that thick, creamy consistency. Keep an eye on it and stir every couple of minutes — orzo can stick to the bottom if you ignore it.
Cook until the orzo is tender and most of the liquid has absorbed. You can adjust the consistency here: less water for a drier dish, more for something soupier.
Step 8: Garnish and Serve
Turn off the heat and stir in the fresh cilantro or parsley. Serve immediately while the orzo is creamy and the peas are still bright green.