Heat olive oil in a large skillet over medium-high heat for about 2 minutes. Pat the chicken thighs dry with paper towels—this helps them brown better. Sear each thigh for 3-4 minutes per side until you get golden edges, then set aside. Don't worry about cooking them through; they'll finish in the crockpot.

Add diced onion, carrots, and celery to the same skillet and sauté for 2-3 minutes. You'll hear it sizzle—that's the good stuff. Scrape up any browned bits stuck to the bottom because that's where the flavor lives.

Spray your crockpot with cooking spray to prevent sticking. Layer the rice on the bottom, then add the sautéed vegetables on top. Pour the chicken broth evenly over everything, then nestle the seared chicken thighs into the mixture.

Sprinkle salt, pepper, and smoked paprika over the chicken and rice. Give everything a gentle stir so the seasoning spreads around. Cover with the crockpot lid and set to low for 4 hours—this is the magic timing.

After 3 hours and 45 minutes, peek inside and add the frozen peas. Don't panic if it looks a little watery—that's totally normal at this point. The rice absorbs liquid as it finishes cooking, so just trust the process.

When the timer goes off, check the rice for doneness by tasting a grain. It should be tender but not mushy, and most of the liquid should be absorbed. If you see standing liquid, leave the lid off for 10 minutes to let it evaporate.

Top with shredded cheddar cheese and let it melt for about 2 minutes with the lid on. Stir gently to combine everything, taste it, and add more salt if needed. Serve hot and watch your family clean their plates.