Warm Spinach Salad with Bacon, Tomatoes, and Pecans

INGREDIENTS

slices Bacon

1 pint

Grape tomatoes

Red onion

Salt and ground pepper, Coarse

1 tbsp

Sugar

1/3 cup

White-wine vinegar

1/2 cup

Pecan, halves

2 to 3 bunches (1 1/2 pounds total) flat-leaf spinach, trimmed, cleaned, and dried