Which food has less impact on blood sugar?

INGREDIENTS: FULLY COOKED CHORIZO SAUSAGE: PORK, SPICES, CONTAINS 2% OR LESS OF: FLAVORING AND COLORING, SALT, WATER, FULLY COOKED EGG PATTY: WHOLE EGGS, WHEY, NONFAT MILK, VEGETABLE OIL (CORN OIL/SOYBEAN OIL), CONTAINS 2% OR LESS OF: SALT, XANTHAN GUM, CITRIC ACID, PEPPER, NATURAL BUTTER FLAVOR, BUN: ENRICHED BLEACHED WHEAT FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, SUGAR, SOYBEAN OIL, CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: YEAST, SALT, VITAL WHEAT GLUTEN, MONO-AND DIGLYCERIDES, CORN STARCH, CALCIUM STEAROYL LACTYLATE (CSL), OAT FIBER, CORN SYRUP SOLIDS, GUAR GUM, SODIUM ALGINATE, MONOCALCIUM PHOSPHATE, ENZYMES, XANTHAN GUM, ASCORBIC ACID (VITAMIN C), PASTEURIZED PROCESS SMOKED GOUDA CHEESE: PASTEURIZED CULTURED MILK, WATER, CREAM, SODIUM CITRATE, CONTAINS 2% OR LESS OF: SALT, SODIUM PHOSPHATE, SORBIC ACID (PRESERVATIVE), ENZYMES, LACTIC ACID, NATURAL SMOKE FLAVOR, SOY LECITHIN (NON-STICKING AGENT).