I start by whisking olive oil, Dijon, lemon juice and zest, garlic, oregano, thyme, salt, and pepper. Then, I toss the chicken thighs in this mixture. Letting it sit for 15 minutes really locks in flavor.
I heat a bit of oil in my skillet over medium heat. Each chicken thigh gets 3-4 minutes per side to brown nicely. Don’t worry if it’s not fully cooked yet—we’ll finish it with the rice.
Next, I add diced onion and season lightly. After a few minutes, I stir in garlic and rice, letting the rice toast for a few minutes to enhance its flavor.
I pour in the chicken broth and any leftover marinade, scraping up those delicious browned bits. Then, I nestle the chicken back, cover, and simmer 15 minutes until rice is tender.
Finally, I stir in baby spinach until wilted. I check seasoning with salt, pepper, and red pepper flakes. The dish is ready to serve once the spinach is soft and the chicken is fully cooked.