Preheat oven to 400° F + line a sheet pan with foil; add fish to pan, cover with 2-3 tbsp pesto + salt/pep; bake 8-12 min, until firm, opaque + cooked through

Meanwhile, heat 1 tbsp oil in large skillet over med-high, sauté half the spinach + salt/pep 1-2 min until wilted; add rest of spinach + cook another 1-2 min until all spinach is wilted

Tear corner of rice to vent + microwave 90 sec (careful—it'll be hot!)

Slice fish in half + divide everything between 2 plates