A burrito that falls apart halfway through eating almost never has a filling problem — it has a folding and moisture problem, and both are fixable with technique rather than a different recipe. Cold, stiff tortillas straight from the fridge crack at the fold lines instead of bending, so warming them briefly, either in a dry skillet for about fifteen seconds per side or a few seconds in the microwave wrapped in a damp paper towel, makes the gluten pliable enough to fold tightly without tearing.
The fold itself has a specific order for a reason. Bringing in the two sides first, before rolling from the bottom, creates a seam that traps the filling on both ends rather than leaving it exposed to spill out mid-roll. Rolling tightly, with a bit of backward pressure that tucks the filling under itself as you go, compacts everything into a shape that holds together under its own tension rather than one that's just loosely wrapped and hoping to stay closed.
Excess moisture is the other structural enemy here, and it comes from an unexpected source: watery salsa or overly wet beans soaking straight through the tortilla within minutes of assembly. Draining and rinsing canned beans thoroughly, and using a thicker, chunkier salsa rather than a thin one, keeps the tortilla structurally sound long enough to actually eat the burrito without it disintegrating in your hands.
Layering order matters more than it seems for the same reason. Placing rice as a base layer, with wetter ingredients like salsa and sour cream stacked on top rather than touching the tortilla directly, gives the rice a chance to absorb any excess liquid before it reaches the wrapper. It's a small adjustment, but it's the difference between a burrito that holds up for fifteen minutes and one that needs to be eaten immediately or not at all.
Taco seasoning simmered with a splash of water rather than sprinkled dry onto the meat spreads more evenly and actually coats each piece of beef in flavor rather than settling unevenly in clumps, the way dry spice tends to when stirred into meat that's already released its own liquid. The few extra minutes of simmering also gives the seasoning time to fully bloom rather than tasting raw and powdery.
The same fold technique works just as well with Tacos al Pastor filling if you want a change from ground beef, and Guacamole is the obvious side.