1 lb (500 g) lean ground beef
1 pkg (255 g) Hamburger Helper* Cheesy Enchilada
2 1/3 cup (575 ml) hot water
1/2 cup (125 ml) milk
1 pkg (334 g) Old El Paso* 8 Large Flour Tortillas
1 jar (440 mL) (about 1 3/4 cups) Old El Paso* Thick N' Chunky Salsa
1 cup (250 mL) shredded Cheddar cheese
sour cream (optional)