Quarter the tomatillos and onion; halve the chilies. Sauté in a little oil over medium-high until blistered and soft, 5-7 minutes. Blend with the garlic, cilantro, salt, and lime, adding a splash of water if too thick.
Cut the tortillas into wedges. Fry in 1/2 inch of 350°F oil in batches until golden and crisp, 2-3 minutes, and salt right away. Or use sturdy store-bought chips.
Warm 2-3 cups of the salsa verde in a wide skillet until bubbling at the edges. Stir in stock a splash at a time until it is saucy but still clings.
Make wells in the sauce and crack in the eggs. Cover and cook over medium heat 4-6 minutes, until the whites set and the yolks still jiggle. Season the tops with salt and pepper.
Layer chips on plates or a platter, spoon over the sauce and eggs, and add more chips on the side for crunch.
Shower with crema, queso fresco, red onion, cilantro, and radishes. Finish with a squeeze of lime and eat immediately.