Onions:

HTML Template

<div google-chart chart="myChartObject" style="height:600px; width:100%;"></div>

JavaScript

	/* global angular */
angular.module("google-chart-sample", ["googlechart", "googlechart-docs"])
.controller("GenericChartCtrl", function ($scope) {
    $scope.myChartObject = {};
    
    $scope.myChartObject.type = "BarChart";
    
    $scope.onions = [
        {v: "Onions"},
        {v: 3},
    ];

    $scope.myChartObject.data = {"cols": [
        {id: "t", label: "Topping", type: "string"},
        {id: "s", label: "Slices", type: "number"}
    ], "rows": [
        {c: [
            {v: "Mushrooms"},
            {v: 3},
        ]},
        {c: $scope.onions},
        {c: [
            {v: "Olives"},
            {v: 31}
        ]},
        {c: [
            {v: "Zucchini"},
            {v: 1},
        ]},
        {c: [
            {v: "Pepperoni"},
            {v: 2},
        ]}
    ]};

    $scope.myChartObject.options = {
        'title': 'How Much Pizza I Ate Last Night'
    };
});